Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Document Fiscal Year Focus			2016
Net income			$ (105,334)	$ (129,004)
Other comprehensive (loss) income:
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	$ 1,294	$ (15,768)	(25,338)	(11,274)
Other comprehensive income (loss)			22,815	(4,693)
Parent Company [Member]
Net income	(11,114)	(59,734)	(105,334)	(129,004)
Other comprehensive (loss) income:
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	1,294	(15,768)	(25,338)	(11,274)
Reclassification adjustment of derivative instruments included in net income	43,111	2,155	48,063	6,654
Available-for-sale Securities, Gross Unrealized Gain	53	(43)	90	(73)
Other comprehensive income (loss)	44,458	(13,656)	22,815	(4,693)
Comprehensive income	55,572	46,078	128,149	124,311
Less: comprehensive income (loss) attributable to noncontrolling interests:
Net income attributable to noncontrolling interests	(543)	(737)	(1,545)	(1,823)
Other comprehensive income (loss) attributable to noncontrolling interests	158	(149)	(139)	(134)
Comprehensive income attributable to noncontrolling interests	701	588	1,406	1,689
Comprehensive income attributable to the Company	54,871	45,490	126,743	122,622
Partnership Interest [Member]
Net income	(11,114)	(59,734)	(105,334)	(129,004)
Other comprehensive (loss) income:
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	1,294	(15,768)	(25,338)	(11,274)
Reclassification adjustment of derivative instruments included in net income	43,111	2,155	48,063	6,654
Available-for-sale Securities, Gross Unrealized Gain	53	(43)	90	(73)
Other comprehensive income (loss)	44,458	(13,656)	22,815	(4,693)
Comprehensive income	55,572	46,078	128,149	124,311
Less: comprehensive income (loss) attributable to noncontrolling interests:
Net income attributable to noncontrolling interests	(527)	(643)	(1,380)	(1,619)
Other comprehensive income (loss) attributable to noncontrolling interests	91	86	(172)	(127)
Comprehensive income attributable to noncontrolling interests	618	729	1,208	1,492
Comprehensive income attributable to the Company	$ 54,954	$ 45,349	$ 126,941	$ 122,819