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Fair Value Measurements - Summary of Reconciliation of Recurring Fair Value Measurements (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Deferred consideration |  |  |  |
Beginning balance | $ 17,502 | $ 6,700 | $ 21,421 | $ 0
Purchases | 10,000 | 5,000 | 10,000 | 11,863
Net unrealized (gains)/losses | 3,100 | 12 | (819) | (151)
Ending balance | 30,602 | 11,712 | 30,602 | 11,712
Deferred Consideration Obligation [Member] |  |  |  |
Deferred consideration |  |  |  |
Beginning balance | 179,831 | 245,177 | 200,290 | 228,062
Net realized losses | 1,583 | 4,446 | 6,069 | 8,896
Net unrealized (gains)/losses | (41,361) | (2,311) | (61,953) | 14,707
Settlements | (140,053) | (4,545) | (144,406) | (8,898)
Ending balance | $ 0 | $ 242,767 | $ 0 | $ 242,767

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- Definition Amount of purchases of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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