Goodwill and Other Intangible Assets - Schedule of Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross Amount	$ 4,648,985	$ 4,648,576
Intangible assets, Accumulated Amortization	1,502,012	1,326,311
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross Amount	4,175,065	4,174,724
Intangible assets, Accumulated Amortization	1,243,668	1,087,834
Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross Amount	364,173	364,106
Intangible assets, Accumulated Amortization	159,369	142,363
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross Amount	109,747	109,746
Intangible assets, Accumulated Amortization	$ 98,975	$ 96,114