Derivative Financial Instruments - Impact of Derivatives on the Statements of Changes in Stockholder's Equity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Amount of gain (loss) recognized in other comprehensive income (loss)	$ (36,115)
Amount of gain (loss) recognized in other comprehensive income (loss)		$ 10,452	$ 8,008
Amount of gain (loss) reclassified in interest expense	2,299
Amount of gain (loss) reclassified in interest expense		(1,455)	(11,187)
Total change in other comprehensive income (loss) for unrealized gains (losses) on derivatives, before income tax (expense) benefit	(38,414)
Total change in other comprehensive income (loss) for unrealized gains (losses) on derivatives, before income tax (expense) benefit	$ (38,414)	$ 11,907	$ 19,195