CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net Income	$ 82,929	$ 71,892	$ 156,850
Realized and unrealized gain on hedging instruments	1,022	4,297	540
Comprehensive income	83,951	76,189	157,390
Less: comprehensive income attributable to noncontrolling interest	(542)	(524)	(58)
Comprehensive Income Attributable to Common Shareholders	$ 83,409	$ 75,665	$ 157,332