Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The change in the carrying value of goodwill for the year ended December 31, 2022 and 2021, categorized by reportable segments, is as follows (in thousands):

	Clear Aligner		Systems and Services		Total
Balance as of December 31, 2020	$	112,691	$	332,126	$	444,817
Additions from acquisition	3,646		—		3,646
Foreign currency translation adjustments	(4,129)		(25,787)		(29,916)
Balance as of December 31, 2021	112,208		306,339		418,547
Additions from acquisition	—		8,729		8,729
Foreign currency translation adjustments	(2,728)		(16,997)		(19,725)
Balance as of December 31, 2022	$	109,480	$	298,071	$	407,551

Schedule of Amortized Intangible Assets

Acquired intangible long-lived assets were as follows, excluding intangibles that were fully amortized (in thousands):

	Weighted Average Amortization Period (in years)	Gross Carrying Amount as of December 31, 2022		Accumulated Amortization		Accumulated Impairment Loss		Net Carrying Value as of December 31, 2022
Existing technology	10	$	112,051	$	(33,537)	$	(4,328)	$	74,186
Customer relationships	10	21,500		(5,913)		—		15,587
Trademarks and tradenames	10	17,200		(6,442)		(4,122)		6,636
Patents	8	6,511		(5,288)		—		1,223
		$	157,262	$	(51,180)	$	(8,450)	97,632
Foreign currency translation adjustments								(1,912)
Total intangible assets, net 1								$	95,720

1    Also includes $33.5 million of fully amortized intangible assets related to customer relationships.

	Weighted Average Amortization Period (in years)	Gross Carrying Amount as of December 31, 2021		Accumulated Amortization		Accumulated Impairment Loss		Net Carrying Value as of December 31, 2021
Existing technology	10	$	104,531	$	(22,495)	$	(4,328)	$	77,708
Customer relationships	11	55,000		(25,891)		(10,751)		18,358
Trademarks and tradenames	10	17,200		(4,547)		(4,179)		8,474
Patents	8	6,511		(4,495)		—		2,016
		$	183,242	$	(57,428)	$	(19,258)	106,556
Foreign currency translation adjustments								3,153
Total intangible assets, net								$	109,709

Schedule of Future Amortization for Finite-Lived Intangible Assets

The total estimated annual future amortization expense for these acquired intangible assets as of December 31, 2022 is as follows (in thousands):

Fiscal Year	Amortization
2023	$	16,501
2024	15,335
2025	14,959
2026	14,353
2027	11,992
Thereafter	24,492
Total	$	97,632