Investments, All Other Investments [Abstract]
Schedule of Available-for-sale Securities [Table]
Schedule of Available-for-sale Securities [Table]
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Axis]
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Axis]
Schedule of Fair Value of Separate Accounts by Major Category of Investment, Category [Domain]
Schedule of Fair Value of Separate Accounts by Major Category of Investment, Category [Domain]
Short-term Investments
Short-term Investments [Member]
Long Term Investments
Long Term Investments [Member]
Long Term Investments [Member]
Major Types of Debt and Equity Securities [Axis]
Major Types of Debt and Equity Securities [Axis]
Major Types of Debt and Equity Securities [Domain]
Major Types of Debt and Equity Securities [Domain]
Commercial paper
Commercial Paper [Member]
Corporate bonds
Corporate Debt Securities [Member]
U.S. dollar dominated foreign corporate bonds
Foreign Government Debt Securities [Member]
Municipal Securities [Member]
Municipal Securities [Member]
Municipal Securities [Member]
U.S. government agency bonds
Agency Bonds [Member]
Agency Bonds [Member]
Asset-backed Securities [Member]
Asset-backed Securities [Member]
US Government Agency Bonds [Member]
US Government Agency Bonds [Member]
US Government Agency Bonds [Member]
U.S. Government Treasury Bonds [Member]
U.S. Government Treasury Bonds [Member]
U.S. Government Treasury Bonds [Member]
Certificates of Deposit [Member]
Certificates of Deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost
Available-for-sale Securities, Amortized Cost Basis
Gross Unrealized Gains
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax
Gross Unrealized Losses
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax
Fair Value
Available-for-sale Securities
Document Documentand Entity Information [Abstract]
Document and Entity Information [Abstract]
Document Type
Document Type
Amendment Flag
Amendment Flag
Document Period End Date
Document Period End Date
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Trading Symbol
Trading Symbol
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Entity Central Index Key
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Filer Category
Entity Filer Category
Entity Common Stock, Shares Outstanding (shares)
Entity Common Stock, Shares Outstanding
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
Entity Public Float
Entity Public Float
Entity Current Reporting Status
Entity Current Reporting Status
Entity Voluntary Filers
Entity Voluntary Filers
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill
Schedule of Goodwill [Table Text Block]
Schedule Of Amortized Intangible Assets
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Schedule of Future Amortization For Finited-Lived Intangible Assets
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Commitments and Contingencies Disclosure [Abstract]
Legal Proceedings
Legal Matters and Contingencies [Text Block]
Schedule of Finite-Lived Intangible Assets by Major Class [Table]
Schedule of Finite-Lived Intangible Assets [Table]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Trademarks
Trademarks [Member]
Existing technology
Existing Technology [Member]
Existing Technology [Member]
Customer Relationships [Member]
Customer Relationships [Member]
Other Intangible Assets [Member]
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives of intangibles
Finite-Lived Intangible Asset, Useful Life
Gross Carrying Amount as of December 31, 2012
Finite-Lived Intangible Assets, Gross
Accumulated Amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Impairment Charge
Finite-Lived Intangible Assets, Accumulated Impairment Loss
Finite-Lived Intangible Assets, Accumulated Impairment Loss
Total
Finite-Lived Intangible Assets, Net
Earnings Per Share [Abstract]
Restructuring Reserve [Abstract]
Business Combinations [Abstract]
Schedule of Business Acquisitions, Purchase Price Allocation [Table]
Schedule Of Business Acquisitions Purchase Price Allocation [Table]
Schedule of Business Acquisitions, Purchase Price Allocation [Table]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Minimum
Minimum [Member]
Maximum
Maximum [Member]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Schedule Of Business Acquisitions Purchase Price Allocation [Line Items]
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
2014
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months
2015
Finite-Lived Intangible Assets, Amortization Expense, Year Two
2016
Finite-Lived Intangible Assets, Amortization Expense, Year Three
2017
Finite-Lived Intangible Assets, Amortization Expense, Year Four
2018
Finite-Lived Intangible Assets, Amortization Expense, Year Five
Thereafter
Finite-Lived Intangible Assets, Amortization Expense, after Year Five
Statement of Cash Flows [Abstract]
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net income
Net Income (Loss) Attributable to Parent
Adjustments to reconcile net income to net cash provided by operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Deferred taxes
Deferred Income Tax Expense (Benefit)
Depreciation and amortization
Depreciation, Depletion and Amortization
Stock-based compensation
Share-based Compensation
Excess tax benefit from share-based payment arrangements
Excess Tax Charge Benefit From Share Based Compensation Operating Activities
Excess Tax Charge (Benefit) from Share based Compensation, Operating Activities
Impairment of goodwill
Goodwill, Impairment Loss
Impairment of long lived assets
Impairment of Long-Lived Assets Held-for-use
Other
Other Noncash Income (Expense)
Changes in assets and liabilities, excluding the effects of business combinations:
Increase (Decrease) in Operating Capital [Abstract]
Accounts receivable
Increase (Decrease) in Accounts Receivable
Inventories
Increase (Decrease) in Inventories
Prepaid expenses and other assets
Increase (Decrease) in Prepaid Expense and Other Assets
Accounts payable
Increase (Decrease) in Accounts Payable
Accrued and other long-term liabilities
Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities
Deferred revenues
Increase (Decrease) in Deferred Revenue
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
CASH FLOWS FROM INVESTING ACTIVITIES:
Net Cash Provided by (Used in) Investing Activities [Abstract]
Acquisition, net of cash acquired
Payments to Acquire Businesses, Net of Cash Acquired
Purchase of property, plant and equipment
Payments to Acquire Property, Plant, and Equipment
Purchase of marketable securities
Payments to Acquire Available-for-sale Securities
Proceeds from maturities of marketable securities
Proceeds from Sale and Maturity of Available-for-sale Securities
Proceeds from Sale and Maturity of Marketable Securities
Proceeds from Sale and Maturity of Marketable Securities
Other assets
Payments for (Proceeds from) Other Investing Activities
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
CASH FLOWS FROM FINANCING ACTIVITIES:
Net Cash Provided by (Used in) Financing Activities [Abstract]
Proceeds from issuance of common stock
Proceeds from Issuance of Common Stock
Common stock repurchase
Payments for Repurchase of Common Stock
Excess tax benefit from share-based payment arrangements
Excess Tax Benefit from Share-based Compensation, Financing Activities
Employees' taxes paid upon the vesting of restricted stock units
Payments Related to Tax Withholding for Share-based Compensation
Net cash (used in) provided by financing activities
Net Cash Provided by (Used in) Financing Activities
Effect of foreign exchange rate changes on cash and cash equivalents
Effect of Exchange Rate on Cash and Cash Equivalents
Net (decrease) increase in cash and cash equivalents
Cash and Cash Equivalents, Period Increase (Decrease)
Cash and cash equivalents, beginning of year
Cash and Cash Equivalents, at Carrying Value
Cash and cash equivalents, end of year
Schedule of Goodwill [Table]
Schedule of Goodwill [Table]
Segments [Axis]
Segments [Axis]
Segments [Domain]
Segments [Domain]
Clear Aligner
Clear Aligner [Member]
Clear Aligner [Member]
Scanners and CAD/CAM Services
Scanners And CADCAM [Member]
Scanners and CAD and CAM [Member]
Goodwill [Line Items]
Goodwill [Line Items]
Goodwill, Translation Adjustments
Goodwill, Translation Adjustments
Goodwill [Roll Forward]
Goodwill [Roll Forward]
Balance, Beginning Balance
Goodwill
Adjustment to goodwill
Goodwill, Acquired During Period
Impairment of goodwill
Balance, Ending Balance
Accounting Policies [Abstract]
Schedule of Error Corrections and Prior Period Adjustment Restatement [Table]
Schedule of Error Corrections and Prior Period Adjustment Restatement [Table]
Adjustments for Error Corrections [Axis]
Adjustments for Error Corrections [Axis]
Adjustments for Error Correction [Domain]
Adjustments for Error Correction [Domain]
Out Of Period Correction [Member]
Out Of Period Correction [Member]
Out Of Period Correction [Member]
Scenario [Axis]
Scenario [Axis]
Scenario, Unspecified [Domain]
Scenario, Unspecified [Domain]
Restatement Adjustment [Member]
Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net revenues
Revenue, Net
Operating expenses
Operating Expenses
Provision for income taxes
Income Tax Expense (Benefit)
Income Tax Disclosure [Abstract]
U.S. federal statutory income tax rate
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
State income taxes, net of federal tax benefit
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent
Impact of differences in foreign tax rates
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent
Goodwill Impairment
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent
Amortization of stock-based compensation
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Percent
Other items not individually material
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent
Effective Income Tax Rate, Continuing Operations, Total
Effective Income Tax Rate Reconciliation, Percent
Valuation and Qualifying Accounts [Abstract]
Valuation and Qualifying Accounts Disclosure [Table]
Valuation and Qualifying Accounts Disclosure [Table]
Valuation Allowances and Reserves Type [Axis]
Valuation Allowances and Reserves Type [Axis]
Valuation Allowances and Reserves [Domain]
Valuation Allowances and Reserves [Domain]
Allowance for doubtful accounts
Allowance for Doubtful Accounts, Current [Member]
Allowance for deferred tax assets
Valuation Allowance of Deferred Tax Assets [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation and Qualifying Accounts Disclosure [Line Items]
Movement in Valuation Allowances and Reserves [Roll Forward]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period
Valuation Allowances and Reserves, Balance
Additions (reductions) to Costs and Expenses
Valuation Allowances And Reserves Charged To Cost And Expense Or Revenue
Valuation Allowances and Reserves, Charged to Cost and Expense or Revenue
Write offs
Valuation Allowances and Reserves, Deductions
Charged to Other Accounts
Valuation Allowances and Reserves, Charged to Other Accounts
Reclassification from Other Accounts
Valuation Allowances and Reserves, Adjustments
Balance at End of Period
Fair Value, Assets and Liabilities Measured on Recurring Basis [Table]
Fair Value Assets And Liabilities Measured On Recurring Basis [Table]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Table]
Money market funds
Money Market Funds [Member]
Corporate bonds
Corporate Bond Securities [Member]
Israeli funds
Israeli Severance Funds [Member]
Israeli Severance Funds [Member]
Fair Value by Measurement Frequency [Axis]
Measurement Frequency [Axis]
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurements, Recurring
Fair Value, Measurements, Recurring [Member]
Fair Value, Hierarchy [Axis]
Fair Value, Hierarchy [Axis]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value Hierarchy [Domain]
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Inputs, Level 1 [Member]
Significant Other Observable Inputs (Level 2)
Fair Value, Inputs, Level 2 [Member]
Cash Equivalents
Cash Equivalents [Member]
Other assets
Other Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Money market funds
Cash and Cash Equivalents, Fair Value Disclosure
Investments
Other assets
Other Assets, Fair Value Disclosure
Assets measured at fair value
Assets, Fair Value Disclosure
Stockholders' Equity Note [Abstract]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table]
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Cost of revenues
Cost of Sales [Member]
Sales and marketing
Selling and Marketing Expense [Member]
General and administrative
General and Administrative Expense [Member]
Research and development
Research and Development Expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense
Allocated Share-based Compensation Expense
Federal
Federal Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current
Current Federal Tax Expense (Benefit)
Deferred
Deferred Federal Income Tax Expense (Benefit)
Total federal income tax expense
Federal Income Tax Expense (Benefit), Continuing Operations
State
State and Local Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current
Current State and Local Tax Expense (Benefit)
Deferred
Deferred State and Local Income Tax Expense (Benefit)
Total state tax expense
State and Local Income Tax Expense (Benefit), Continuing Operations
Foreign
Foreign Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current
Current Foreign Tax Expense (Benefit)
Deferred
Deferred Foreign Income Tax Expense (Benefit)
Total foreign tax expense
Foreign Income Tax Expense (Benefit), Continuing Operations
Provision for income taxes
Schedule of Income before Income Tax, Domestic and Foreign
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
Schedule of Components of Income Tax Expense (Benefit)
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Schedule of Effective Income Tax Rate Reconciliation
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Schedule of Deferred Tax Assets and Liabilities
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Schedule of Unrecognized Tax Benefits Rollforward
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
Balance Sheet Related Disclosures [Abstract]
Accrued payroll and benefits
Employee-related Liabilities, Current
Accrued sales rebate
Accrued Marketing Costs, Current
Accrued sales tax and value added tax
Sales and Excise Tax Payable, Current
Accrued sales and marketing expenses
Accrued Sales And Marketing Current
Accrued Sales and Marketing, Current
Accrued warranty
Standard Product Warranty Accrual, Current
Accrued accounts payable
Accrued Accounts Payable
Accrued Accounts Payable
Accrued professional fees
Accrued Professional Fees, Current
Accrued income taxes
Accrued Income Taxes, Current
Other
Other Accrued Liabilities, Current
Total current accrued liabilities
Accrued Liabilities, Current
Income Taxes
Income Tax Disclosure [Text Block]
Statement of Financial Position [Abstract]
ASSETS
Assets [Abstract]
Current assets:
Assets, Current [Abstract]
Cash and cash equivalents
Marketable securities, short-term
Available-for-sale Securities, Debt Securities, Current
Accounts receivable, net of allowance for doubtful accounts and returns of $1,563 and $1,733, respectively
Accounts Receivable, Net, Current
Inventories
Inventory, Net
Prepaid expenses and other current assets
Prepaid Expense and Other Assets, Current
Deferred Tax Assets, Net, Current
Deferred Tax Assets, Net, Current
Total current assets
Assets, Current
Marketable securities, long-term
Available-for-sale Securities, Debt Securities, Noncurrent
Property, plant and equipment, net
Property, Plant and Equipment, Net
Goodwill
Intangible Assets, Net (Including Goodwill)
Deferred tax assets
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent
Other assets
Other Assets, Noncurrent
Total assets
Assets
LIABILITIES AND STOCKHOLDERS' EQUITY
Liabilities and Equity [Abstract]
Current liabilities:
Liabilities, Current [Abstract]
Accounts payable
Accounts Payable, Current
Accrued liabilities
Deferred revenues
Deferred Revenue, Current
Total current liabilities
Liabilities, Current
Taxes Payable
Taxes Payable
Other long-term liabilities
Other Liabilities, Noncurrent
Total liabilities
Liabilities
Commitments and contingencies (Notes 6 and 8)
Commitments and Contingencies
Stockholders' equity:
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock, $0.0001 par value (5,000 shares authorized; none issued)
Preferred Stock, Value, Issued
Common stock, $0.0001 par value (200,000 shares authorized; 80,205 and 80,583 issued and outstanding at 2014 and 2013, respectively)
Common Stock, Value, Issued
Additional paid-in capital
Additional Paid in Capital
Accumulated other comprehensive income, net
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated deficit
Retained Earnings (Accumulated Deficit)
Total stockholders' equity
Stockholders' Equity Attributable to Parent
Total liabilities and stockholders' equity
Liabilities and Equity
Statement [Table]
Statement [Table]
Award Type [Axis]
Award Type [Axis]
Award Type [Domain]
Equity Award [Domain]
Stock Option
Equity Option [Member]
Restricted Stock Units (RSUs)
Restricted Stock Units (RSUs) [Member]
Market Performance Based Restricted Stock Units
Market Performance Based Restricted Stock Units [Member]
Market Performance Based Restricted Stock Units [Member]
Plan Name [Axis]
Plan Name [Axis]
Plan Name [Domain]
Plan Name [Domain]
2001 Purchase Plan
Stock Plan 2001 [Member]
Stock Plan 2001 [Member]
Statement [Line Items]
Statement [Line Items]
Stock-based Compensation Expense
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]
Stock Option Activity
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
Weighted Average Assumptions Used for the Fair Value of Options Component of Purchase Plan Granted Estimated at Grant Date
Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]
Summary Of Nonvested Shares
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]
Summary Of Nonvested Shares
Schedule of Nonvested Performance-based Units Activity [Table Text Block]
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Method Used
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Method Used Table [Text Block]
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Method Used [Table Text Block]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Underlying RSUs
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested beginning balance (shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Granted (shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
Vested and released (shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Forfeited (shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Nonvested ending balance (shares)
Nonvested, beginning balance (usd per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Granted (usd per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Vested and released (usd per share)
Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Vested And Released In Period Weighted Average Grant Date Fair Value
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options Vested And Released In Period Weighted Average Grant Date Fair Value
Forfeited (usd per share)
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeits In Period Weighted Average Grant Date Fair Value
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeits In Period Weighted Average Grant Date Fair Value
Nonvested, ending balance (usd per share)
Weighted Remaining Vesting Period (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Nonvested as of December 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms
Aggregate Intrinsic Value
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value [Abstract]
Nonvested as of December 31, 2014
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Total Intrinsic Value
Share based Compensation Arrangement by Share based Payment Award, Equity Instruments Other than Options, Nonvested, Total Intrinsic Value
Deferred tax assets:
Deferred Tax Assets, Net [Abstract]
Net operating loss and capital loss carryforwards
Deferred Tax Assets Net Operating And Capital Loss Carryforwards
Deferred Tax Assets, Net Operating and Capital Loss Carryforwards
Credit carryforwards
Deferred Tax Assets, Tax Credit Carryforwards
Reserves and accruals
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals
Translation gains
Deferred Tax Assets, Unrealized Currency Losses
Stock-based compensation
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost
Total deferred tax assets, gross
Deferred Tax Assets, Gross
Deferred tax liabilities:
Deferred Tax Liabilities, Gross [Abstract]
Prepaid expenses
Deferred Tax Liabilities, Prepaid Expenses
Depreciation and amortization
Deferred Tax Liabilities, Property, Plant and Equipment
Total deferred tax liabilities, gross
Deferred Tax Liabilities, Gross
Net deferred tax assets before valuation allowance
Deferred Tax Assets Liabilities Gross
Deferred Tax Assets (Liabilities), Gross
Valuation allowance
Deferred Tax Assets, Valuation Allowance
Net deferred tax assets
Deferred Tax Assets, Net
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Employee Stock Purchase Plan
Employee Stock Purchase Plan [Member]
Employee Stock Purchase Plan [Member]
Expected term (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term
Expected volatility
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Risk-free interest rate
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Expected dividends
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Weighted average fair value at grant date (usd per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Raw materials
Inventory, Raw Materials, Net of Reserves
Work in process
Inventory, Work in Process, Net of Reserves
Finished goods
Inventory, Finished Goods, Net of Reserves
Inventories
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Statement, Geographical [Axis]
Geographical [Axis]
Segment, Geographical [Domain]
Geographical [Domain]
United States
UNITED STATES
Mexico
MEXICO
the Netherlands
NETHERLANDS
Other international
Other International [Member]
Other International [Member]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Long-lived assets
Long-Lived Assets
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Business Acquisition [Axis]
Business Acquisition [Axis]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
Cadent [Member]
Cadent [Member]
Cadent [Member]
ICA Holdings Pty Limited [Member]
ICA Holdings Pty Limited [Member]
ICA Holdings Pty Limited [Member]
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Acquisition, net of cash acquired
Goodwill
Gross profit
Gross Profit
Assets acquired
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets
Liabilities assumed
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities
Marketable Securities and Fair Value Measurements [Abstract]
Marketable Securities and Fair Value Measurements [Abstract]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Original maturity of highly liquid investments included in Cash and cash equivalents
Maturity Period Used To Classify Investments
Maturity Period Used to Classify Investments
Weighted average maturity
Marketable Securities, Weighted Average Remaining Maturity
Marketable Securities, Weighted Average Remaining Maturity
Short-Term And Long-Term Marketable Securities
Available-for-sale Securities [Table Text Block]
Marketable Securities
Marketable Securities [Table Text Block]
Financial Assets Measured At Fair Value On A Recurring Basis
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
Stock Options
Employee Stock Option [Member]
Income Statement [Abstract]
Net revenues
Cost of revenues
Cost of Revenue
Gross profit
Operating expenses:
Operating Expenses [Abstract]
Sales and marketing
Selling and Marketing Expense
General and administrative
General and Administrative Expense
Research and development
Research and Development Expense
Total operating expenses
Income from operations
Operating Income (Loss)
Interest and other income (expense), net
Other Nonoperating Income (Expense)
Net income before provision for income taxes
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest
Net income
Net income per share:
Basic (usd per share)
Earnings Per Share, Basic
Diluted (usd per share)
Earnings Per Share, Diluted
Shares used in computing net income per share:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic (shares)
Weighted Average Number of Shares Outstanding, Basic
Diluted (shares)
Weighted Average Number of Shares Outstanding, Diluted
Marketable Securities and Fair Value Measurements
Financial Instruments Disclosure [Text Block]
Debt Disclosure [Abstract]
Line of Credit Facility [Table]
Line of Credit Facility [Table]
Line of Credit Facility [Line Items]
Line of Credit Facility [Line Items]
Line of credit, available borrowings
Line of Credit Facility, Maximum Borrowing Capacity
Current borrowing capacity
Line of Credit Facility, Current Borrowing Capacity
Minimum unrestricted cash balance requirement
Minimum Unrestricted Cash Balance To Be Maintained
Minimum unrestricted cash balance to be maintained.
Interest rate on borrowings at LIBOR plus, minimum
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum
Interest rate on borrowings at LIBOR plus, maximum
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum
Line of credit, amount outstanding
Long-term Line of Credit
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flow Information
Cash Flow, Supplemental Disclosures [Text Block]
Business Combinations
Business Combination Disclosure [Text Block]
Statement of Stockholders' Equity [Abstract]
Statement, Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Common Stock
Common Stock [Member]
Additional Paid in Capital
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Deficit
Retained Earnings [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance (in shares)
Shares, Outstanding
Beginning Balance
Net change in unrealized gain (loss) from available-for sale securities
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax
Net change in cumulative translation adjustment
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Issuance of common stock relating to employee equity compensation plans (in shares)
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures
Issuance of common stock relating to employee equity compensation plans
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures
Tax withholdings related to net share settlements of restricted stock units
Tax Withholding Related To Vesting Of Restricted Stock Units
Tax Withholding Related to Vesting of Restricted Stock Units
Common stock repurchased and retired (shares)
Stock Repurchased and Retired During Period, Shares
Common stock repurchased and retired
Stock Repurchased and Retired During Period, Value
Excess tax benefit from share based payment arrangements
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation
Stock based compensation
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition
Ending Balance (in shares)
Ending Balance
Asset impairment charges
Asset Impairment Charges
Impairment of intangible assets
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)
Business Description
Description Of Business Policy [Policy Text Block]
Description of Business [Policy Text Block]
Basis of presentation and preparation
Basis Of Presentation [Policy Text Block]
Basis of Presentation [Policy Text Block]
Use of estimates
Use of Estimates, Policy [Policy Text Block]
Fair value of financial instruments
Fair Value of Financial Instruments, Policy [Policy Text Block]
Cash and cash equivalents
Cash and Cash Equivalents, Policy [Policy Text Block]
Restricted cash
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]
Marketable Securities
Marketable Securities, Policy [Policy Text Block]
Foreign currency
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Certain risks and uncertainties
Concentration Risk, Credit Risk, Policy [Policy Text Block]
Inventories
Inventory, Policy [Policy Text Block]
Property, plant and equipment
Property, Plant and Equipment, Policy [Policy Text Block]
Goodwill and finite-lived purchased intangible assets
Goodwill and Intangible Assets, Policy [Policy Text Block]
Impairment of goodwill and long-lived assets
Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block]
Development costs for internal use software
Research, Development, and Computer Software, Policy [Policy Text Block]
Product Warranty
Standard Product Warranty, Policy [Policy Text Block]
Allowance for Doubtful Accounts
Receivables, Policy [Policy Text Block]
Revenue recognition
Revenue Recognition, Policy [Policy Text Block]
Shipping and Handling Costs
Shipping and Handling Cost, Policy [Policy Text Block]
Legal Proceedings and Litigations
Commitments and Contingencies, Policy [Policy Text Block]
Research and development
Research and Development Expense, Policy [Policy Text Block]
Advertising costs
Advertising Costs, Policy [Policy Text Block]
Common Stock Repurchase
Stockholders' Equity, Policy [Policy Text Block]
Operating Leases
Lease, Policy [Policy Text Block]
Income taxes
Income Tax, Policy [Policy Text Block]
Stock-based compensation
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]
Consolidation of Variable Interest Entities
Consolidation, Variable Interest Entity, Policy [Policy Text Block]
Medical Device Excise Tax
Medical Device Excise Tax, Policy [Policy Text Block]
Medical Device Excise Tax, Policy [Policy Text Block]
Comprehensive income
Comprehensive Income, Policy [Policy Text Block]
Recent Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]
Earnings Per Share, Policy
Earnings Per Share, Policy [Policy Text Block]
Reclassification, Policy [Policy Text Block]
Reclassification, Policy [Policy Text Block]
Significant Accounting Policies [Table]
Significant Accounting Policies [Table]
Significant Accounting Policies [Table]
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Noncurrent Assets
Noncurrent Assets [Member]
Noncurrent Assets [Member]
Other Noncurrent Assets
Other Noncurrent Assets [Member]
Prepaid Expenses and Other Current Assets
Prepaid Expenses and Other Current Assets [Member]
Other Current Assets
Other Current Assets [Member]
Property, Plant and Equipment by Type [Axis]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Type [Domain]
Leasehold improvements
Leasehold Improvements [Member]
Building
Building [Member]
Software Development
Software Development [Member]
Significant Accounting Policies [Line Items]
Significant Accounting Policies [Line Items]
Significant Accounting Policies [Line Items]
Number of operating segments
Number of Operating Segments
Restricted cash
Restricted Cash and Cash Equivalents, Current
Foreign currency net loss
Foreign Currency Transaction Gain (Loss), Realized
Number of financial instutions used
Cash, Financial Institutions Used
Cash, Financial Institutions Used
Property plant and equipment estimated useful lives
Property, Plant and Equipment, Useful Life
Capitalized computer software development expenses during period
Capitalized Computer Software, Additions
Scanners, Warranty period
Standard Product Warranty Time Period
Standard Product Warranty Time Period
Advertising cost
Advertising Expense
Lease term
Lease Term
Lease Term
Undistributed earnings of foreign subsidiaries
Undistributed Earnings of Foreign Subsidiaries
Medical device tax expense
Medical Device Excise Tax Expense (Benefit)
Medical Device Excise Tax Expense (Benefit)
Number of Shares Underlying Stock Options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding beginning balance (shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Granted (shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross
Exercised (shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Cancelled or expired (shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period
Outstanding ending balance (shares)
Vested and expected to vest at December 31, 2013 (shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number
Exercisable at December 31, 2013 (shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
Weighted Average Exercise Price per Share
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding beginning balance (usd per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Granted (usd per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Exercised (usd per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Cancelled or expired (usd per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price
Outstanding ending balance (usd per share)
Vested and expected to vest at December 31, 2013 (usd per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price
Exercisable at December 31, 2013 (usd per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Weighted Average Remaining Contractual Term (in years)
Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Remaining Contractual Term [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract]
Outstanding as of December 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Vested and expected to vest at December 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term
Exercisable at December 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Aggregate Intrinsic Value
Share Based Compensation Arrangement By Share Based Payment Award Options Aggregate Intrinsic Value [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Abstract]
Outstanding as of December 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
Vested and expected to vest at December 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value
Exercisable at December 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value
Domestic
Income (Loss) from Continuing Operations before Income Taxes, Domestic
Foreign
Income (Loss) from Continuing Operations before Income Taxes, Foreign
Compensation Related Costs [Abstract]
Employee Benefit Plans
Compensation and Employee Benefit Plans [Text Block]
Stockholders Equity Note [Table]
Stockholders Equity Note [Table]
Stockholders Equity Note [Table]
Vesting [Axis]
Vesting [Axis]
Vesting [Domain]
Vesting [Domain]
Annual Vesting
Annual Vesting [Member]
Annual Vesting [Member]
Monthly Vesting
Monthly Vesting [Member]
Monthly Vesting [Member]
Employee Stock Incentive Plan 2005 [Member]
Employee Stock Incentive Plan 2005 [Member]
Employee Stock Incentive Plan 2005 [Member]
Shares Transferred From 2001 Stock Incentive Plan
Shares Transferred From 2001 Stock Incentive Plan [Member]
Shares Transferred from 2001 Stock Incentive Plan [Member]
Employee Stock Purchase Plan 2010
Employee Stock Purchase Plan 2010 [Member]
Employee Stock Purchase Plan, 2010 [Member]
Schedule of Share-based Compensation Arrangement by Share-based Payment Award [Axis]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award [Axis]
Schedule of Share-based Compensation Arrangement by Share-based Payment Award [Axis]
Share-based Compensation Arrangements by Share-based Payment Award [Domain]
Share Based Compensation Arrangements By Share Based Payment Award [Domain]
Share-based Compensation Arrangements by Share-based Payment Award [Domain]
Stockholder Rights Plan
Stockholder Rights Plan [Member]
Stockholder Rights Plan [Member]
Incentive Plan 2005
Stock Incentive Plan 2005 [Member]
2005 Stock Incentive Plan [Member]
Amended And Restated 2005 Stock Incentive Plan
Amended And Restated 2005 Stock Incentive Plan [Member]
Amended And Restated 2005 Stock Incentive Plan [Member]
Stockholders Equity Note [Line Items]
Stockholders Equity Note [Line Items]
Stockholders Equity Note [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights
Preferred stock purchase right, number of rights declared for each outstanding share of our common stock
Class Of Warrant Or Right Issuable With Each New Share Of Common Stock
Class Of Warrant Or Right Issuable With Each New Share Of Common Stock
Dividend distribution, date of record
Dividends Payable, Date of Record
Preferred stock, par value (usd per share)
Preferred Stock, Par or Stated Value Per Share
Preferred stock purchase right, exercise price (usd per share)
Class of Warrant or Right, Exercise Price of Warrants or Rights
Number of shares called by each right (shares)
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right
Preferred stock purchase right, minimum ownership percentage that should be acquired or intended to be acquired to trigger exercise
Minimum Outstanding Stock Percentage That Should Be Acquired For Rights Issued To Become Exercisable
Minimum Outstanding Stock Percentage That Should be Acquired for Rights Issued to Become Exercisable
Ratio of common stock to purchase price
Class of Warrant or Right, Ratio Of Common Stock Value To Purchase Price of Right
Class of Warrant or Right, Ratio Of Common Stock Value To Purchase Price of Right
Preferred stock purchase right, expiration Date
Class Of Warrant Or Right Expiration Date
Class of Warrant or Right, Expiration Date
Shares reserved for issuance
Common Stock, Capital Shares Reserved for Future Issuance
Stock incentive plan, term
Share Based Compensation Arrangement By Share Based Payment Award Options Expiration Term
Share Based Compensation Arrangement by Share Based Payment Award, Options, Expiration Term
Stock incentive plan, vesting period
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Stock incentive plan, vesting percentage
Share Based Compensation Arrangement By Share Based Payment Award Vesting Percentage
Share Based Compensation Arrangement by Share based Payment Award, Vesting Percentage
Total intrinsic value of stock options exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value
Fair value of stock options vested
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value
Tax effect from exercised stock options
Deferred Tax Expense from Stock Options Exercised
Vested rand released in period, Total intrinsic value
Share Based Compensation Arrangement, By Share-based Payment Award, Equity Instruments Other Than Options, Vested And Released, Total Intrinsic Value
Share Based Compensation Arrangement, By Share-based Payment Award, Equity Instruments Other Than Options, Vested And Released, Total Intrinsic Value
Vested in period, Fair value
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value
Total unamortized compensation cost
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized
Weighted average period of total unamortized cost
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition
Restricted stock units, shares vested and released (shares)
Restricted stock units, shares withheld for tax payments
Shares Paid for Tax Withholding for Share Based Compensation
Restricted stock units, net issuance
Restricted Stock, Shares Issued Net of Shares for Tax Withholdings
Percentage of market-performance based restricted stock units eligible to vest over the vesting period
Percentage Of Market Performance Based Restricted Stock Units During Vesting Period
Maximum percentage of market-performance based restricted stock units during vesting period.
Employee Stock Purchase Plan, Duration Of Offering Period
Employee Stock Purchase Plan, Duration Of Offering Period
Employee Stock Purchase Plan, Duration Of Offering Period
Employee stock purchase plan, purchase price as percentage of fair market value of common stock
Share Based Compensation Arrangement By Share Based Payment Award Purchase Price Percentage Of Fair Market Value
Share Based Compensation Arrangement by Share Based Payment Award, Purchase Price, Percentage of Fair Market Value
Number of offering periods
Employee Stock Purchase Plan, Number Of Six Month Purchasing Periods
Employee Stock Purchase Plan, Number Of Six Month Purchasing Periods
Maximum number of shares available
Employee Stock Purchase Plan Number Of Shares Available For Issuance
Employee Stock Purchase Plan, Number Of Shares Available for Issuance
Employee stock purchase plan, shares issued
Stock Issued During Period, Shares, Employee Stock Purchase Plans
Weighted average exercise price (usd per share)
Share-based Compensation by Share-based Payment Award, Weighted Average Purchase Price of Common Stock
Share-based Compensation by Share-based Payment Award, Weighted Average Purchase Price of Common Stock
Number of shares available for grant (shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period
Schedule of Restructuring and Related Costs [Table]
Schedule of Restructuring and Related Costs [Table]
Restructuring Cost and Reserve [Line Items]
Restructuring Cost and Reserve [Line Items]
Schedule of Cash Flow, Supplemental Disclosures
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
Stockholders' Equity
Stockholders' Equity Note Disclosure [Text Block]
Income Taxes [Table]
Income Taxes [Table]
Income Taxes [Table]
Income Tax Authority [Axis]
Income Tax Authority [Axis]
Income Tax Authority [Domain]
Income Tax Authority [Domain]
State and Local Jurisdiction
State and Local Jurisdiction [Member]
Foreign Country
Foreign Tax Authority [Member]
Valuation Allowance by Deferred Tax Asset [Axis]
Valuation Allowance by Deferred Tax Asset [Axis]
Deferred Tax Asset [Domain]
Deferred Tax Asset [Domain]
Acquisition Related Assets And Foreign Net Operating Loss Carryforwards [Member]
Acquisition Related Assets And Foreign Net Operating Loss Carryforwards [Member]
Acquisition Related Assets And Foreign Net Operating Loss Carryforwards [Member]
Lapse In Statute Of Limitations [Member]
Lapse In Statute Of Limitations [Member]
Lapse In Statute Of Limitations [Member]
Costa Rica
COSTA RICA
Tax Credit Carryforward [Axis]
Tax Credit Carryforward [Axis]
Tax Credit Carryforward, Name [Domain]
Tax Credit Carryforward, Name [Domain]
Research
Research Tax Credit Carryforward [Member]
Income Taxes [Line Items]
Income Taxes [Line Items]
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount
Tax incentives, period
Income Tax Incentive Period
Income Tax Incentive Period
Tax incentives, corporate income tax rate that would apply absent the incentives
National Corporate Tax Rate
National Corporate Tax Rate
Tax incentives, reduction in income taxes
Income Tax Holiday, Aggregate Dollar Amount
Tax benefit of tax holiday on net income per share (diluted) (usd per share)
Income Tax Holiday, Income Tax Benefits Per Share
Deferred tax assets, valuation allowance
Change in valuation allowance
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount
Net operating loss carryforwards
Operating Loss Carryforwards
Tax benefits associated with the exercise of employee stock options and utilization of net operating loss carryover applicable to stock options
Tax Benefit (Expense) from Stock Options Exercised and Utilization of Net Operating Losses due to Stock Options
Tax Benefit (Expense) from Stock Options Exercised and Utilization of Net Operating Losses due to Stock Options
Research credit carryforward
Tax Credit Carryforward, Amount
Increase in unrecognized tax benefits
Unrecognized Tax Benefits, Period Increase (Decrease)
Unrecognized tax benefits
Unrecognized Tax Benefits
Schedule II: Valuation and Qualifying Accounts and Reserves
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
Invisalign Full [Member]
Invisalign Full [Member]
Invisalign Full [Member]
Invisalign Express/Lite [Member]
Invisalign ExpressLite [Member]
Invisalign Express/Lite [Member]
Invisalign Non-Case Revenues [Member]
Invisalign Non-Case Revenues [Member]
Invisalign Non-Case Revenues [Member]
Scanners [Member]
Scanners [Member]
Scanners [Member]
Revenue
Schedule of Deferred Compensation Arrangement with Individual, Postretirement Benefits [Table]
Schedule of Deferred Compensation Arrangement with Individual, Postretirement Benefits [Table]
Deferred Compensation Arrangement with Individual, Postretirement Benefits, by Type of Deferred Compensation [Axis]
Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Axis]
Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Domain]
Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Domain]
Defined Contribution Pension Plan 401k
Other Postretirement Benefit Plan [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Employer matching contribution as percentage of employee's salary deferral contributions
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay
Employer matching contribution as percentage of employee's eligible compensation
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent
Employer contributions amount
Deferred Compensation Arrangement with Individual, Employer Contribution
Accrued severance funds liability
Supplemental Unemployment Benefits, Severance Benefits
Accounts receivable, allowance for doubtful accounts and returns
Allowance For Doubtful Accounts Receivable And Sales Returns Current
Allowance For Doubtful Accounts Receivable And Sales Returns Current
Preferred stock, shares authorized (shares)
Preferred Stock, Shares Authorized
Preferred stock, issued (shares)
Preferred Stock, Shares Issued
Common stock, par value (usd per share)
Common Stock, Par or Stated Value Per Share
Common stock, shares authorized (shares)
Common Stock, Shares Authorized
Common stock, issued (shares)
Common Stock, Shares, Issued
Common stock, outstanding (shares)
Common Stock, Shares, Outstanding
Total rent expense
Operating Leases, Rent Expense, Net
Schedule of Inventories
Schedule of Inventory, Current [Table Text Block]
Property and Equipment
Property, Plant and Equipment [Table Text Block]
Schedule of Accrued Liabilities
Schedule of Accrued Liabilities [Table Text Block]
Warranty accrual
Schedule of Product Warranty Liability [Table Text Block]
Segments and Geographical Information
Segment Reporting Disclosure [Text Block]
Schedule of Future Lease Payments
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
Summary of Significant Accounting Policies
Significant Accounting Policies [Text Block]
Balance Sheet Components
Supplemental Balance Sheet Disclosures [Text Block]
Credit Facilities
Debt Disclosure [Text Block]
Schedule of Segment Reporting Information, by Segment
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
Weighted average fair value per share at grant date (usd per share)
Numerator:
Net Income (Loss) Available to Common Stockholders, Basic [Abstract]
Denominator:
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted-average common shares outstanding, basic (shares)
Dilutive effect of potential common stock (shares)
Weighted Average Number Diluted Shares Outstanding Adjustment
Total shares, diluted (shares)
Net income per share, basic (usd per share)
Net income per share, diluted (usd per share)
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefit as of beginning of period
Tax positions related to current year, additions for uncertain tax positions
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions
Tax positions related to prior year, additions for uncertain tax positions
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions
Decreases for uncertain tax positions
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions
Unrecognized tax benefit as of end of period
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Number of Shares
Weighted Average Remaining Contractual Term
Nonvested
Nonvested
Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Vested And Released In Period Weighted Average Grant Date Fair Value
Trademarks (one to fifteen year useful lives)
Existing technology (thirteen year useful life)
Customer relationships (eleven year useful life)
Goodwill
Liabilities assumed
Number of reportable segments
Number of Reportable Segments
Schedule Of Earnings Per Share Basic And Diluted
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Net Income per Share
Earnings Per Share [Text Block]
One year or less
Marketable Securities, Current
One year through two years
Marketable Securities, Noncurrent
Marketable Securities
Marketable Securities
Common Stock Repurchase Program [Abstract]
Common Stock Repurchase Program [Abstract]
Share Repurchases [Table]
Share Repurchases [Table]
Share Repurchases [Table]
Share Repurchase Program [Axis]
Share Repurchase Program [Axis]
Share Repurchase Program [Domain]
Share Repurchase Program [Domain]
October 2011 Stock Repurchase Program
October 2011 Stock Repurchase Program [Member]
October 2011 Stock Repurchase Program [Member]
April 2014 Stock Repurchase Program
April 2014 Stock Repurchase Program [Member]
April 2014 Stock Repurchase Program [Member]
Additional Paid-in Capital
Retained Earnings
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Subsequent Event
Subsequent Event [Member]
Share Repurchases [Line Items]
Share Repurchases [Line Items]
Share Repurchases [Line Items]
Repurchase of common stock, common stock authorized
Stock Repurchase Program, Authorized Amount
Common stock repurchased and retired (shares)
Common stock repurchased (in dollars per share)
Share Repurchases Price Paid Per Share
Share Repurchases, Price Paid Per Share
Common stock repurchased and retired
Repurchase of common stock, aggregate purchase price - Increase/(Decrease) In Equity
Stock Repurchased During Period, Value
Authorized stock repurchase amount over next twelve months
StockRepurchaseProgramAuthorizedAmountforNextTwelveMonths
StockRepurchaseProgramAuthorizedAmountforNextTwelveMonths
Accelerated share repurchase agreement amount
AcceleratedShareRepurchaseContractedAmountofRepurchase
AcceleratedShareRepurchaseContractedAmountofRepurchase
Accelerated share repurchase amount
Accelerated Share Repurchases, Settlement (Payment) or Receipt
Accelerated share repurchase (in shares)
AcceleratedShareRepurchaseProgramFinalDeliveryofSharesShares
AcceleratedShareRepurchaseProgramFinalDeliveryofSharesShares
Accelerated share repurchases price per share (in dollars per share)
Accelerated Share Repurchases, Final Price Paid Per Share
Remaining authorized repurchase amount
Stock Repurchase Program, Remaining Authorized Repurchase Amount
Additional authorized repurchase amount
Stock Repurchase Program, Additional Amount Authorized
Stock Repurchase Program, Additional Amount Authorized
2014
Operating Leases, Future Minimum Payments Due, Next Twelve Months
2015
Operating Leases, Future Minimum Payments, Due in Two Years
2016
Operating Leases, Future Minimum Payments, Due in Three Years
2017
Operating Leases, Future Minimum Payments, Due in Four Years
2018
Operating Leases, Future Minimum Payments, Due in Five Years
Thereafter
Operating Leases, Future Minimum Payments, Due Thereafter
Total minimum lease payments
Operating Leases, Future Minimum Payments Due
Taxes paid
Income Taxes Paid
Non-cash investing and financing activities:
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Fixed assets acquired with accounts payable or accrued liabilities
Capital Expenditures Incurred but Not yet Paid
Unclaimed merger consideration liability
Merger Consideration
Merger Consideration
Movement in Standard Product Warranty Accrual [Roll Forward]
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance at beginning of period
Standard Product Warranty Accrual
Charged to cost of revenues
Standard Product Warranty Accrual, Warranties Issued
Actual warranty expenditures
Standard Product Warranty Accrual, Payments
Balance at end of period
Goodwill and Intangible Assets
Goodwill and Intangible Assets Disclosure [Text Block]
Statement of Comprehensive Income [Abstract]
Net change in cumulative translation adjustment
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax
Change in unrealized gains (losses) on available-for sale securities, net of tax
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent
Other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Comprehensive income (loss)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Schedule of Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Clinical and manufacturing equipment
Equipment [Member]
Computer hardware
Technology Equipment [Member]
Computer software
Software and Software Development Costs [Member]
Furniture and fixtures
Furniture and Fixtures [Member]
Land
Land [Member]
Construction in progress
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Net [Abstract]
Property, Plant and Equipment, Net [Abstract]
Property and equipment
Property, Plant and Equipment, Gross
Less: Accumulated depreciation and amortization
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Property, plant and equipment, net
Impairment of property and equipment
Depreciation and amortization
Depreciation, Depletion and Amortization, Nonproduction
Notes To Financial Statements [Abstract]
Notes To Financial Statements [Abstract]
Share Repurchase Program Disclosure [Text Block]
Share Repurchase Program Disclosure [Text Block]
Share Repurchase Program Disclosure