Goodwill and Intangible Assets - Carrying Amounts of Amortizable Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Finite-lived Intangible Assets [Roll Forward]
Gross cost, beginning balance			$ 1,082,177
Addition due to an acquisition			990
Intangible assets fully amortized			(1,026)
Foreign currency translation impact			5,009
Gross cost, ending balance	$ 1,087,150		1,087,150
Accumulated amortization	(568,035)		(568,035)		$ (497,463)
Finite-lived intangible assets, net	519,115		519,115		584,714
Amortization of intangibles	23,989	$ 24,369	69,625	$ 74,271
Customer Relationships
Finite-lived Intangible Assets [Roll Forward]
Gross cost, beginning balance			1,060,541
Addition due to an acquisition			990
Intangible assets fully amortized			(987)
Foreign currency translation impact			4,970
Gross cost, ending balance	1,065,514		1,065,514
Accumulated amortization	(553,279)		(553,279)		(486,260)
Finite-lived intangible assets, net	$ 512,235		$ 512,235		574,281
Customer Relationships | Minimum
Finite-lived Intangible Assets [Roll Forward]
Remaining amortization period	6 years		6 years
Customer Relationships | Maximum
Finite-lived Intangible Assets [Roll Forward]
Remaining amortization period	13 years		13 years
Technology-related
Finite-lived Intangible Assets [Roll Forward]
Gross cost, beginning balance			$ 11,200
Addition due to an acquisition			0
Intangible assets fully amortized			(39)
Foreign currency translation impact			39
Gross cost, ending balance	$ 11,200		11,200
Accumulated amortization	(8,400)		(8,400)		(5,600)
Finite-lived intangible assets, net	$ 2,800		$ 2,800		5,600
Remaining amortization period	3 years		3 years
Other
Finite-lived Intangible Assets [Roll Forward]
Gross cost, beginning balance			$ 10,436
Addition due to an acquisition			0
Intangible assets fully amortized			0
Foreign currency translation impact			0
Gross cost, ending balance	$ 10,436		10,436
Accumulated amortization	(6,356)		(6,356)		(5,603)
Finite-lived intangible assets, net	$ 4,080		$ 4,080		$ 4,833
Other | Minimum
Finite-lived Intangible Assets [Roll Forward]
Remaining amortization period	4 years		4 years
Other | Maximum
Finite-lived Intangible Assets [Roll Forward]
Remaining amortization period	11 years		11 years