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Goodwill and Intangible Assets - Change in Carrying Value of Goodwill (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($)
Goodwill [Roll Forward]
Balance as of December 31, 2023	$ 419,530
Additions from acquisition	47,576
Foreign currency translation adjustments	4,406
Balance as of September 30, 2024	471,512
Clear Aligner
Goodwill [Roll Forward]
Balance as of December 31, 2023	111,086
Additions from acquisition	47,576
Foreign currency translation adjustments	963
Balance as of September 30, 2024	159,625
Systems and Services
Goodwill [Roll Forward]
Balance as of December 31, 2023	308,444
Additions from acquisition	0
Foreign currency translation adjustments	3,443
Balance as of September 30, 2024	$ 311,887

X

- Definition

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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