Sep. 24, 2019
Document Type 8-K
Amendment Flag false
Document Period End Date Sep. 24, 2019
Entity File Number 0-32259
Entity Registrant Name ALIGN TECHNOLOGY INC
Entity Central Index Key 0001097149
Entity Tax Identification Number 94-3267295
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 2820 Orchard Parkway
Entity Address, City or Town San Jose
Entity Address, State or Province CA
Entity Address, Postal Zip Code 95134
City Area Code 408
Local Phone Number 470-1000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.0001 par value
Trading Symbol ALGN
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Elected Not To Use the Extended Transition Period false