Acquisitions, Goodwill, and Other Intangible Assets, Net - Rollforward of Other Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Other Intangible Assets [Line Items]
Other intangible assets, gross		$ 1,413,200
Accumulated amortization		(628,900)
Other Intangible Assets [Rollforward]
Other intangible assets, net, beginning balance	$ 784,260
Additions from new business combinations	36,000
Currency translation adjustments	(400)
Amortization expense	(101,700)
Other intangible assets, net, ending balance	718,230
Customer Relationships and Backlog
Other Intangible Assets [Line Items]
Other intangible assets, gross		1,096,600
Accumulated amortization		(529,300)
Other Intangible Assets [Rollforward]
Other intangible assets, net, beginning balance	567,300
Additions from new business combinations	35,000
Currency translation adjustments	0
Amortization expense	(82,900)
Other intangible assets, net, ending balance	519,400
Trade Names
Other Intangible Assets [Line Items]
Other intangible assets, gross		229,000
Accumulated amortization		(49,800)
Other Intangible Assets [Rollforward]
Other intangible assets, net, beginning balance	179,200
Additions from new business combinations	1,000
Currency translation adjustments	0
Amortization expense	(13,900)
Other intangible assets, net, ending balance	166,300
Other
Other Intangible Assets [Line Items]
Other intangible assets, gross		87,600
Accumulated amortization		(49,800)
Other Intangible Assets [Rollforward]
Other intangible assets, net, beginning balance	37,800
Additions from new business combinations	0
Currency translation adjustments	(400)
Amortization expense	(4,900)
Other intangible assets, net, ending balance	32,500
Trade Names
Other Intangible Assets [Rollforward]
Other intangible assets, non-amortizing	$ 34,500	$ 34,500