Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 319,613	$ (581,847)	$ 169,183
Other comprehensive (loss) income:
Net unrealized gain (loss) on available-for-sale securities	8,016	(3,951)	17,077
Reclassification of unrealized gain on available-for-sale securities to net income (loss)	(16,849)	(12,165)	(19,967)
Net unrealized loss on interest rate agreements	0	(32,806)	(16,894)
Reclassification of unrealized loss on interest rate agreements to net income	4,127	3,188	0
Total other comprehensive loss	(4,706)	(45,734)	(19,784)
Total Comprehensive Income (Loss)	$ 314,907	$ (627,581)	$ 149,399