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Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2,246,673	$ 2,347,775
Accumulated Amortization	(897,894)	(796,831)
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,073,523	2,029,955
Accumulated Amortization	(835,594)	(606,532)
Trade Names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	64,500	201,861
Accumulated Amortization	(34,215)	(164,797)
Subcontractor Relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		5,440
Accumulated Amortization		(5,440)
Non-compete Agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	13,050	14,919
Accumulated Amortization	(5,621)	(5,685)
Developed Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	95,600	95,600
Accumulated Amortization	$ (22,464)	$ (14,377)

X

- 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
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(16))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482665/350-30-50-2

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- Definition

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
-Topic 928
-SubTopic 340
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 926
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483154/926-20-50-5

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