Derivative Financial Instruments - Impact of Derivatives on Consolidated Statement of Changes in Stockholders' Equity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Amount of gain (loss) recognized in other comprehensive income (loss)	$ (4,438)	$ (6,562)	$ 13,716	$ (53,784)
Less: amount of gain (loss) reclassified in interest expense	(5,294)	(4,219)	(10,563)	(5,747)
Total change in other comprehensive income (loss) for unrealized gains (losses) on derivatives, before income tax (expense) benefit	$ 856	$ (2,343)	$ 24,279	$ (48,037)