Segments and Geographical Information - Segments Information - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Net revenues	$ 3,734,635	$ 3,952,584	$ 2,471,941
Gross profit	2,633,775	2,935,355	1,763,235
Operating Income (Loss)	642,595	976,400	387,171
Stock-based compensation	133,367	114,336	98,427
Depreciation and amortization	125,793	108,729	93,538
Operating Segments
Segment Reporting Information [Line Items]
Operating Income (Loss)	1,314,185	1,584,993	864,097
Unallocated corporate expense
Segment Reporting Information [Line Items]
Operating Income (Loss)	(671,590)	(608,593)	(476,926)
Stock-based compensation	117,557	102,983	88,718
Depreciation and amortization	39,605	36,425	35,369
Clear Aligner
Segment Reporting Information [Line Items]
Net revenues	3,072,585	3,247,080	2,101,459
Gross profit	2,228,170	2,474,373	1,532,130
Clear Aligner | Operating Segments
Segment Reporting Information [Line Items]
Operating Income (Loss)	1,134,420	1,325,866	768,045
Stock-based compensation	14,816	10,648	8,975
Depreciation and amortization	57,888	50,723	41,371
Systems and Services
Segment Reporting Information [Line Items]
Net revenues	662,050	705,504	370,482
Gross profit	405,605	460,982	231,105
Systems and Services | Operating Segments
Segment Reporting Information [Line Items]
Operating Income (Loss)	179,765	259,127	96,052
Stock-based compensation	994	705	734
Depreciation and amortization	$ 28,300	$ 21,581	$ 16,798