Acquisitions, Goodwill and Other Intangible Assets, Net - Rollforward of Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Other Intangible Assets [Line Items]
Other intangible assets, gross			$ 996,100
Accumulated amortization			(325,800)
Other Intangible Assets [Roll Forward]
Other intangible assets, net, beginning balance	$ 946,299	$ 670,300
Additions from new business combinations	6,800	368,100
Measurement period adjustments		45,500
Currency translation adjustments	400	(1,700)
Amortization expense	(169,200)	(135,900)
Other intangible assets, net, ending balance	$ 784,260	946,299
Weighted Average
Other Intangible Assets [Roll Forward]
Remaining weighted average amortization period (in years)	13 years
Customer Relationships and Backlog
Other Intangible Assets [Line Items]
Other intangible assets, gross			763,100
Accumulated amortization			(278,000)
Other Intangible Assets [Roll Forward]
Other intangible assets, net, beginning balance	$ 700,600	485,100
Additions from new business combinations	6,700	272,000
Measurement period adjustments		56,000
Currency translation adjustments	0	0
Amortization expense	(140,000)	(112,500)
Other intangible assets, net, ending balance	$ 567,300	700,600
Customer Relationships and Backlog | Weighted Average
Other Intangible Assets [Roll Forward]
Remaining weighted average amortization period (in years)	13 years
Trade Names
Other Intangible Assets [Line Items]
Other intangible assets, gross			140,100
Accumulated amortization			(15,600)
Other Intangible Assets [Roll Forward]
Other intangible assets, net, beginning balance	$ 200,000	124,500
Additions from new business combinations	100	95,800
Measurement period adjustments		(6,900)
Currency translation adjustments	0	0
Amortization expense	(20,900)	(13,400)
Other intangible assets, net, ending balance	$ 179,200	200,000
Trade Names | Weighted Average
Other Intangible Assets [Roll Forward]
Remaining weighted average amortization period (in years)	13 years
Other
Other Intangible Assets [Line Items]
Other intangible assets, gross			92,900
Accumulated amortization			(32,200)
Other Intangible Assets [Roll Forward]
Other intangible assets, net, beginning balance	$ 45,700	60,700
Additions from new business combinations	0	300
Measurement period adjustments		(3,600)
Currency translation adjustments	400	(1,700)
Amortization expense	(8,300)	(10,000)
Other intangible assets, net, ending balance	$ 37,800	45,700
Other | Weighted Average
Other Intangible Assets [Roll Forward]
Remaining weighted average amortization period (in years)	9 years
Trade Names
Other Intangible Assets [Roll Forward]
Other intangible assets, non-amortizing	$ 34,500	$ 34,500	$ 34,500