Unaudited Condensed Consolidated Statements of Comprehensive Income Statement - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	$ (3,976)	$ 0	$ (5,866)	$ 0
Net Income (Loss) Available to Common Stockholders, Basic	14,109	22,442	55,091	53,942
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(11,649)	0	(17,188)	0
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	(11,649)	0	(17,188)	0
Other Comprehensive Income (Loss), Net of Tax	(11,649)	0	(17,188)	$ 0
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	$ 2,460	$ 22,442	$ 37,903