Fair Value of Financial Instruments (Details)	3 Months Ended	12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Mar. 31, 2019 derivative_instrument	Jul. 18, 2017	Mar. 31, 2016 derivative_instrument
Debt Securities, Available-for-sale [Line Items]
Other operating income (expense)		$ (15,600,000)	$ (9,400,000)	$ (1,700,000)
Foreign currency transaction losses		(11,200,000)	(22,900,000)	(13,900,000)
Interest expense		(96,500,000)	(90,600,000)	(66,700,000)
Foreign currency derivative instrument gains (losses)		(3,000,000.0)	6,900,000	7,700,000
Not Designated as Hedging Instrument | Foreign Exchange Contract
Debt Securities, Available-for-sale [Line Items]
Notional value of nonderivative instrument		$ 427,000,000
Weighted average maturity		1 month
Not Designated as Hedging Instrument | Foreign Exchange Contract | Other Operating Income (Expense)
Debt Securities, Available-for-sale [Line Items]
Gain (loss) on foreign currency contract		$ (3,000,000.0)	6,900,000	7,700,000
Not Designated as Hedging Instrument | Foreign Exchange Contract | Nonoperating Income (Expense)
Debt Securities, Available-for-sale [Line Items]
Gain (loss) on foreign currency contract		(7,000,000.0)	0	$ 0
Not Designated as Hedging Instrument | Foreign Exchange Contract | Level 2
Debt Securities, Available-for-sale [Line Items]
Fair value of derivative instruments	$ 600,000	2,400,000	600,000
Designated as Hedging Instrument | Currency Swap
Debt Securities, Available-for-sale [Line Items]
Notional value of derivative instrument		$ 97,000,000
Weighted average maturity		1 year 10 months 24 days
Other operating income (expense)		$ 22,100,000	5,800,000
Foreign currency transaction losses		(22,100,000)	(5,800,000)
Interest expense		(1,900,000)	(5,100,000)
Foreign currency derivative instrument gains (losses)		20,200,000	700,000
Designated as Hedging Instrument | Currency Swap | Level 2
Debt Securities, Available-for-sale [Line Items]
Fair value of contract, asset position	2,100,000	23,600,000	2,100,000
Designated as Hedging Instrument | Interest Rate Swap
Debt Securities, Available-for-sale [Line Items]
Notional value of derivative instrument		$ 40,000,000
Weighted average maturity		2 months 12 days
Number of interest rate swaps | derivative_instrument							2
Designated as Hedging Instrument | Interest Rate Swap | Level 2
Debt Securities, Available-for-sale [Line Items]
Fair value of swap, net	200,000	$ 100,000	200,000
Designated as Hedging Instrument | $400 million interest rate swap
Debt Securities, Available-for-sale [Line Items]
Notional value of derivative instrument		$ 400,000,000
Weighted average maturity		1 year 7 months 6 days
Number of interest rate swaps | derivative_instrument					10
Designated as Hedging Instrument | $400 million interest rate swap | Level 2
Debt Securities, Available-for-sale [Line Items]
Interest expense		$ (7,700,000)	(1,000,000.0)
Fair value of swap, net	15,000,000.0	29,000,000.0	15,000,000.0
Prepaid expenses and other | Not Designated as Hedging Instrument | Foreign Exchange Contract | Level 2
Debt Securities, Available-for-sale [Line Items]
Fair value of derivative instruments	800,000	3,500,000	800,000
Prepaid expenses and other | Designated as Hedging Instrument | Currency Swap | Level 2
Debt Securities, Available-for-sale [Line Items]
Fair value of contract, asset position		3,200,000
Accrued Liabilities | Not Designated as Hedging Instrument | Foreign Exchange Contract | Level 2
Debt Securities, Available-for-sale [Line Items]
Fair value of derivative instruments	200,000	1,100,000	200,000
Accrued Liabilities | Designated as Hedging Instrument | Currency Swap | Level 2
Debt Securities, Available-for-sale [Line Items]
Fair value of contract, liability position	2,800,000		2,800,000
Accrued Liabilities | Designated as Hedging Instrument | $400 million interest rate swap | Level 2
Debt Securities, Available-for-sale [Line Items]
Fair value of swap, liability position	3,600,000	9,700,000	3,600,000
Other Assets | Designated as Hedging Instrument | Currency Swap | Level 2
Debt Securities, Available-for-sale [Line Items]
Fair value of contract, asset position	4,900,000	20,400,000	4,900,000
Other Liabilities | Designated as Hedging Instrument | $400 million interest rate swap | Level 2
Debt Securities, Available-for-sale [Line Items]
Fair value of swap, liability position	11,400,000	19,300,000	11,400,000
Six hundred million senior unsecured notes
Debt Securities, Available-for-sale [Line Items]
Carrying value	600,000,000.0	600,000,000.0	600,000,000.0
Six hundred million senior unsecured notes | Level 3
Debt Securities, Available-for-sale [Line Items]
Fair value	624,700,000	640,900,000	$ 624,700,000
Four hundred million senior unsecured notes
Debt Securities, Available-for-sale [Line Items]
Carrying value		400,000,000.0
Four hundred million senior unsecured notes | Level 3
Debt Securities, Available-for-sale [Line Items]
Fair value		$ 426,800,000
Maco
Debt Securities, Available-for-sale [Line Items]
Purchase consideration	$ 15,100,000
Measurement Input, Revenue Multiple | Maco
Debt Securities, Available-for-sale [Line Items]
Revenue Multiple						2.5