Segments and Geographical Information - Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Net revenues	$ 943,147	$ 973,219
Gross profit	660,654	709,346
Income from operations	133,516	198,082
Stock-based compensation	37,735	31,621
Depreciation and amortization	35,820	29,626
Interest income	2,337	677
Other income (expense), net	(1,229)	(11,273)
Net income before provision for income taxes	134,624	187,486
Operating Segments
Segment Reporting Information [Line Items]
Income from operations	313,097	363,518
Unallocated corporate expenses
Segment Reporting Information [Line Items]
Income from operations	(179,581)	(165,436)
Stock-based compensation	32,760	28,553
Depreciation and amortization	11,276	8,937
Clear Aligner
Segment Reporting Information [Line Items]
Net revenues	789,804	809,696
Gross profit	566,139	605,696
Clear Aligner | Operating Segments
Segment Reporting Information [Line Items]
Income from operations	277,521	312,719
Stock-based compensation	4,654	2,854
Depreciation and amortization	16,398	13,767
Systems and Services
Segment Reporting Information [Line Items]
Net revenues	153,343	163,523
Gross profit	94,515	103,650
Systems and Services | Operating Segments
Segment Reporting Information [Line Items]
Income from operations	35,576	50,799
Stock-based compensation	321	214
Depreciation and amortization	$ 8,146	$ 6,922