Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net Income	$ 78,912	$ 86,868	$ 102,265	$ 57,158
Other comprehensive income:
Reclassification to interest expense	296	337	604	681
Income tax benefit	(70)	(80)	(133)	(161)
Other comprehensive income	226	257	471	520
Comprehensive Income	$ 79,138	$ 87,125	$ 102,736	$ 57,678