CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net income	$ 111,072	$ 9,142	$ 142,055	$ 29,933
Other comprehensive (loss) income
Unrealized (loss) income on valuation of swap agreements	(81)	(857)	(5,189)	2,247
Reclassification of realized interest on swap agreements	961	795	2,734	2,132
Other comprehensive income (loss)	880	(62)	(2,455)	4,379
Comprehensive income	111,952	9,080	139,600	34,312
Comprehensive (income) loss attributable to noncontrolling interests	(82,864)	416	(80,663)	(2,886)
Comprehensive income attributable to Common Shareholders	$ 29,088	$ 9,496	$ 58,937	$ 31,426