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Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2,097,684	$ 256,655
Accumulated Amortization	(494,275)	(136,773)
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,781,264	195,435
Accumulated Amortization	(328,540)	(94,690)
Trade Names
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	201,861	52,061
Accumulated Amortization	(155,141)	(38,138)
Subcontractor Relationships
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,440	5,440
Accumulated Amortization	(3,757)	(1,944)
Non-compete Agreements
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	13,519	3,719
Accumulated Amortization	(3,243)	$ (2,001)
Developed Technology
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	95,600
Accumulated Amortization	$ (3,594)

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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