Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 70,588	$ 86,096	$ 147,624	$ 178,907
Other comprehensive income (loss), net of tax:
Change in derivative instruments designated as cash flow hedges	(16,112)	(31,517)	(136,252)	(45,840)
Reclassification of (gain) loss on derivative instruments designated as cash flow hedges	5,854	(1,716)	7,265	(3,465)
Cumulative effect for the adoption of ASU 2017-12, net of income tax effect	0	0	0	432
Foreign currency translation adjustment	(115)	(175)	(377)	(132)
Other comprehensive income (loss), net of tax	(10,373)	(33,408)	(129,364)	(49,005)
Comprehensive income	60,215	52,688	18,260	129,902
Other comprehensive income attributable to noncontrolling interest	0	0	0	592
Dividend on preferred shares	10,513	2,025	20,338	2,330
Comprehensive income	49,702	50,663	(2,078)	126,980
Tax (benefit) provision on change in derivative instruments designated as cash flow hedges	(1,512)	(3,813)	(10,986)	(5,957)
Tax (benefit) provision on reclassification of (gain) loss on derivative instruments designated as cash flow hedges	335	(591)	183	(1,197)
Tax (benefit) provision on cumulative effect for the adoption of ASU 2017-12	$ 0	$ 0	$ 0	$ 277