CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDTED) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 18,441	$ 14,801	$ 34,081	$ 109,085
Other comprehensive (loss) income:
Effective portion of change in fair value of derivative instruments	(839)	(3,067)	(179)	(10,510)
Reclassification adjustment of derivative instruments included in net income	409	979	1,034	1,964
Other comprehensive (loss) income:	(430)	(2,088)	855	(8,546)
Comprehensive income	18,011	12,713	34,936	100,539
Less: comprehensive income attributable to noncontrolling interest
Net income attributable to noncontrolling interest	128	0	245	0
Other comprehensive income (loss) attributable to noncontrolling interest	(7)	0	3	0
Comprehensive income attributable to noncontrolling interest	121	0	248	0
Comprehensive Income Attributable to Common Shareholders	$ 17,890	$ 12,713	$ 34,688	$ 100,539

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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