Derivatives and Hedging Instruments - Fair Value of Derivative Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Interest rate cap contracts
Derivative [Line Items]
Interest rate derivative - assets	$ 854	$ 659
Interest rate swap agreements
Derivative [Line Items]
Interest rate swap agreements - liabilities	(3,847)	(5,232)
Cross-currency swap agreements
Derivative [Line Items]
Interest rate derivative - assets		11,578
Interest rate swap agreements - liabilities	(5,340)
Derivatives Designated as Hedging Instruments | Interest rate cap contracts | Other assets
Derivative [Line Items]
Interest rate derivative - assets	854	659
Derivatives Designated as Hedging Instruments | Interest rate swap agreements | Other liabilities
Derivative [Line Items]
Interest rate swap agreements - liabilities	(3,847)	(5,232)
Derivatives Designated as Hedging Instruments | Cross-currency swap agreements | Other assets
Derivative [Line Items]
Foreign currency exchange contracts		$ 11,578
Derivatives Designated as Hedging Instruments | Cross-currency swap agreements | Other liabilities
Derivative [Line Items]
Foreign currency exchange contracts	$ 5,340