Financial Instruments and Fair Values - Effect of Derivative Financial Instruments Designated as Cash Flow Hedges (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (loss)	$ 9,763	$ 59
Amount of loss reclassified from accumulated other comprehensive loss into interest expense	(3,294)	(2,869)
Interest expense	(25,014)	(23,554)
Interest rate swap
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (loss)	9,763	59
Amount of loss reclassified from accumulated other comprehensive loss into interest expense	(3,294)	(2,869)
Interest rate swap | Reclassification out of accumulated other comprehensive income | Accumulated other comprehensive income (loss)
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	$ (3,294)	$ (2,869)