Accumulated Other Comprehensive Loss - Reclassifications out of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Interest rate swaps	$ (1,582)	$ 248	$ (1,658)	$ (104)
Income tax effect of item above	14,137	5,075	17,237	8,942
Net income	60,828	22,200	83,264	39,112
Reclassification out of Accumulated Other Comprehensive Income | Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Interest rate swaps	(2,301)	(119)	(3,313)	(198)
Income tax effect of item above	539	0	769	0
Net income	$ (1,762)	$ (119)	$ (2,544)	$ (198)