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Goodwill and Intangible Assets - Gross Carrying Amount and Accumulated Amortization of Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Acquired Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 59,907	$ 84,678
Accumulated Amortization	(52,370)	(54,591)
Net Carrying Amount	7,537	30,087
Customer Relationships
Acquired Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,800	28,000
Accumulated Amortization	(814)	(26,757)
Net Carrying Amount	986	1,243
Developed Technology
Acquired Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	55,772	55,772
Accumulated Amortization	(50,996)	(27,515)
Net Carrying Amount	4,776	28,257
Internal Use Software
Acquired Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,428	906
Accumulated Amortization	(515)	(319)
Net Carrying Amount	913	$ 587
Trade Name [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	907
Accumulated Amortization	(45)
Net Carrying Amount	$ 862

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
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