Derivatives and Hedging Activities - Effect of Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss (Gain) Reclassified from Other Comprehensive Loss into Income or Loss	$ 597	$ 776
Amount of (Loss) Gain Recognized in Other Comprehensive Loss from Derivatives	822	828
Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss (Gain) Reclassified from Other Comprehensive Loss into Income or Loss	(125)	(256)
Gain on foreign currency transactions
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss (Gain) Reclassified from Other Comprehensive Loss into Income or Loss	(763)	(867)
Cash flow hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss (Gain) Reclassified from Other Comprehensive Loss into Income or Loss	(871)	(1,122)
Amount of (Loss) Gain Recognized in Other Comprehensive Loss from Derivatives	1,276	1,214
Cash flow hedging | Gain on foreign currency transactions
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss (Gain) Reclassified from Other Comprehensive Loss into Income or Loss	(763)	(866)
Interest rate products | Cash flow hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) Gain Recognized in Other Comprehensive Loss from Derivatives	(583)	(61)
Interest rate products | Cash flow hedging | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss (Gain) Reclassified from Other Comprehensive Loss into Income or Loss	14	(53)
Cross-currency swap | Cash flow hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) Gain Recognized in Other Comprehensive Loss from Derivatives	1,859	1,275
Cross-currency swap | Cash flow hedging | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss (Gain) Reclassified from Other Comprehensive Loss into Income or Loss	$ (122)	$ (203)