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Component: (Network and Table)
Network
2441404 - Disclosure - Income Taxes - Differences Between Income Taxes Using Federal Statutory Income Tax Rate and Effective Tax Rate (Detail)
(http://www.aligntech.com/role/IncomeTaxesDifferencesBetweenIncomeTaxesUsingFederalStatutoryIncomeTaxRateAndEffectiveTaxRateDetail)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001097149 (http://www.sec.gov/CIK)
Income Tax Disclosure [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Income Tax Disclosure [Abstract]
 
 
 
U.S. federal statutory income tax rate
35.00%  
35.00%  
35.00%  
State income taxes, net of federal tax benefit
2.10%  
1.50%  
1.60%  
Impact of differences in foreign tax rates
(6.30%) 
(16.20%) 
(16.40%) 
Goodwill Impairment
(12.90%) 
0.00%  
0.00%  
Amortization of stock-based compensation
1.20%  
1.60%  
1.00%  
Other items not individually material
2.00%  
0.70%  
2.20%  
Effective Income Tax Rate, Continuing Operations, Total
21.10%  
 
22.60%  
 
23.40%