Goodwill and Intangible Assets - Change in Carrying Value of Goodwill (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2025 USD ($)
Goodwill [Roll Forward]
Balance as of December 31, 2024	$ 442,630
Foreign currency translation adjustments	48,442
Balance as of June 30, 2025	491,072
Clear Aligner
Goodwill [Roll Forward]
Balance as of December 31, 2024	152,645
Foreign currency translation adjustments	11,401
Balance as of June 30, 2025	164,046
Systems and Services
Goodwill [Roll Forward]
Balance as of December 31, 2024	289,985
Foreign currency translation adjustments	37,041
Balance as of June 30, 2025	$ 327,026