Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Consolidated Statements Of Comprehensive Income (Loss) [Abstract]
Net income (loss)	$ 68,769	$ (3,325)
Other comprehensive income (loss):
Net unrealized loss on derivative instruments for interest rate swaps	(6,340)
Comprehensive income (loss)	62,429	(3,325)
Comprehensive income (loss) attributable to noncontrolling interest in consolidated joint ventures	706	490
Comprehensive income (loss) attributable to noncontrolling interest in Operating Partnership	(7,284)	314
Comprehensive income (loss) attributable to common shareholders	$ 55,851	$ (2,521)