Condensed Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Preferred Shares	Preferred Shares Paid-In Capital	Common Shares	Common Shares Paid-In Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit	Noncontrolling interests
Balance (Predecessor Company) at Dec. 31, 2013	$ 2,527,734		$ 361,622		$ 2,953,495	$ (15,652)	$ (771,731)
Balance (in shares) (Predecessor Company) at Dec. 31, 2013		14,950,000		204,824,159
Increase (Decrease) in Shareholders' Equity
Net income (loss) | Predecessor Company	105,980						105,980
Distributions declared on preferred shares | Predecessor Company	(6,891)						(6,891)
Distributions declared on common shares | Predecessor Company	(45,061)						(45,061)
Other comprehensive income (loss) | Predecessor Company	(10,695)					(10,695)
Share-based compensation expense related to restricted common shares | Predecessor Company	1,018				1,018
Balance (Predecessor Company) at Apr. 30, 2014	2,572,085		361,622		2,954,513	(26,347)	(717,703)
Balance (Successor Company) at Apr. 30, 2014	2,572,085		361,622		2,954,513	(26,347)	(717,703)	$ 0
Balance (in shares) (Predecessor Company) at Apr. 30, 2014		14,950,000		204,824,159
Balance (in shares) (Successor Company) at Apr. 30, 2014		14,950,000		204,824,159
Increase (Decrease) in Shareholders' Equity
Purchase accounting adjustments | Successor Company	191,371		17,361		(570,040)	26,347	717,703
Balance (Successor Company) at May. 01, 2014	2,763,456		378,983		2,384,473	0	0	0
Balance (in shares) (Successor Company) at May. 01, 2014		14,950,000		204,824,159
Balance (Predecessor Company) at Apr. 30, 2014	2,572,085		361,622		2,954,513	(26,347)	(717,703)
Balance (Successor Company) at Apr. 30, 2014	2,572,085		361,622		2,954,513	(26,347)	(717,703)	0
Balance (in shares) (Predecessor Company) at Apr. 30, 2014		14,950,000		204,824,159
Balance (in shares) (Successor Company) at Apr. 30, 2014		14,950,000		204,824,159
Increase (Decrease) in Shareholders' Equity
Reverse stock split (in shares) | Successor Company				(204,824,059)
Contribution of assets of previously unconsolidated entities | Successor Company	65,063							65,063
Net income (loss) | Successor Company	(32,057)						(32,873)	816
Distributions declared on preferred shares | Successor Company	(13,782)						(13,782)
Distributions to Parent | Successor Company	(392,923)						(392,923)
Contributions from Parent | Successor Company	291,529						291,529
Capital contributions from Parent | Successor Company	192				192
Other comprehensive income (loss) | Successor Company	0
Balance (Successor Company) at Sep. 30, 2014	2,681,478		378,983		2,384,665	$ 0	(148,049)	65,879
Balance (in shares) (Successor Company) at Sep. 30, 2014		14,950,000		100
Balance (Successor Company) at Dec. 31, 2014	2,488,048		378,983		2,385,078		(376,182)	100,169
Balance at Dec. 31, 2014	2,488,048
Balance (in shares) (Successor Company) at Dec. 31, 2014		14,950,000		100
Increase (Decrease) in Shareholders' Equity
Contribution of assets of previously unconsolidated entities | Successor Company	1,236							1,236
Net income (loss) | Successor Company	(166,601)						(151,149)	(15,452)
Distributions declared on preferred shares | Successor Company	(20,673)						(20,673)
Distributions to Parent | Successor Company	(141,566)						(141,566)
Distributions to Parent	(141,600)
Other comprehensive income (loss) | Successor Company	0
Balance (Successor Company) at Sep. 30, 2015	2,158,567		$ 378,983		$ 2,385,078		(691,447)	$ 85,953
Balance at Sep. 30, 2015	2,158,567
Balance (in shares) (Successor Company) at Sep. 30, 2015		14,950,000		100
Increase (Decrease) in Shareholders' Equity
Cumulative effect adjustment from adoption of accounting guidance | Successor Company	$ (1,877)						$ (1,877)