Derivative Instruments, Hedging Activities and Fair Value - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2022	Dec. 31, 2019	Feb. 28, 2018
Foreign Currency Derivatives
Liabilities		$ 2,179,075,000		$ 2,179,075,000			$ 1,577,808,000
Pre-tax net gains (losses) on certain loans designated as hedges of net investments in foreign subsidiaries		4,600,000	$ (3,000,000.0)	(7,400,000)	$ (3,700,000)
Amount of gain or (loss) reclassified from accumulated other comprehensive income into income		1,225,000		1,199,000
Long-term debt		1,264,600,000		1,264,600,000			827,200,000
Foreign currency exchange forward contracts
Foreign Currency Derivatives
Derivative, Notional Amount		431,600,000		431,600,000			496,300,000
Term Loan Facility, Fixed-Rate | Term Loan
Foreign Currency Derivatives
Principal amount		200,000,000.0		$ 200,000,000.0				$ 300,000,000.0
LIBOR | Term Loan Facility, Fixed-Rate | Term Loan
Foreign Currency Derivatives
Variable rate basis spread				2.45%
LIBOR | Forecast | Term Loan Facility, Fixed-Rate | Term Loan
Foreign Currency Derivatives
Variable rate basis spread						3.12%
Floating-Rate To Fixed-Rate
Foreign Currency Derivatives
Converted debt	$ 100,000,000.0
Reported Value Measurement
Foreign Currency Derivatives
Long-term debt		$ 1,265,700,000		$ 1,265,700,000			$ 795,000,000.0