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Debt and Credit Arrangements - Summary of Outstanding Borrowings (Details) € in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 EUR (€)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 EUR (€)	Nov. 06, 2017 USD ($)
Debt Instrument
Total debt, net of unamortized debt issuance costs	$ 837,500,000		$ 837,500,000			$ 856,700,000
Less: current maturities	256,700,000		256,700,000			255,900,000
Long-term debt	580,800,000		580,800,000			600,800,000
Foreign currency transaction gain	2,500,000	$ 800,000	2,600,000	$ (100,000)
Convertible Notes, due 2024 \| Convertible Debt
Debt Instrument
Principal amount	258,800,000		258,800,000			258,800,000		$ 258,800,000
Unamortized debt issuance costs	(2,100,000)		(2,100,000)			(2,900,000)
Convertible Debt	256,700,000		256,700,000			255,900,000
Debt instrument stated interest rate (percent)								1.00%
Revolving Credit Facility \| Senior secured revolving credit facility due October 2026
Debt Instrument
Long term debt, gross	$ 580,800,000		$ 580,800,000			$ 600,800,000
Debt instrument stated interest rate (percent)	3.10%		3.10%		3.10%	2.10%	2.10%
Letters of credit outstanding	$ 75,100,000		$ 75,100,000
Line of credit remaining borrowing amount	344,100,000		344,100,000
Revolving Credit Facility \| Euro senior secured revolving credit facility
Debt Instrument
Long term debt, gross	85,800,000		85,800,000		€ 88.0	$ 88,300,000	€ 78.0
Foreign currency transaction gain	$ 5,700,000	$ 2,400,000	$ 12,300,000	$ 5,400,000