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Derivative Instruments and Hedging Activities - Net Investment Hedges (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Other Assets, Net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset	$ 1,214		$ 1,214
Accrued Expenses And Other Current Liabilities
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative liabilities	(4,296)		(4,296)
Other Long-Term Liabilities
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative liabilities	(11,116)		(11,116)		$ (49,703)
Net Investment Hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cumulative net losses in cross-currency swaps	1,082		1,082
Interest Rate Swap Agreements
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cumulative net losses in AOCI	13,116		13,116
Interest Rate Swap Agreements \| Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative liabilities	(13,116)		(13,116)		(21,062)
Interest Rate Swap Agreements \| Designated as Hedging Instrument \| Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Unrealized gains (losses) associated with interest rate swap agreements	1,950	$ 1,185	7,946	$ (14,445)
August 2023 Cross Currency Swap Agreements \| Net Investment Hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative liabilities	(2,296)		(2,296)		(8,229)
August 2023 Cross Currency Swap Agreements \| Designated as Hedging Instrument \| Net Investment Hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Unrealized gains (losses) associated with cross-currency swaps	2,655	(5,716)	5,933	(1,408)
February 2026 Cross Currency Swap Agreements \| Net Investment Hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset	1,214		1,214
Derivative liabilities					$ (20,412)
February 2026 Cross Currency Swap Agreements \| Designated as Hedging Instrument \| Net Investment Hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Unrealized gains (losses) associated with cross-currency swaps	$ 10,060	$ 4,346	$ 21,626	$ 4,346