Condensed Consolidated Statement of Equity (USD $) In Thousands, except Share data, unless otherwise specified	Shareholders' equity	Common Stock Class A common shares	Common Stock Class B common shares	Preferred shares	Additional paid-in capital	Accumulated deficit	Accumulated other comprehensive loss	Noncontrolling interest	Total
Beginning Balances at Dec. 31, 2014	$ 3,450,101	$ 2,108	$ 6	$ 171	$ 3,618,207	$ (170,162)	$ (229)	$ 719,493	$ 4,169,594
Beginning Balances, shares at Dec. 31, 2014		210,838,831	635,075	17,060,000
Increase (Decrease) in Stockholders' Equity
Share-based compensation	696				696				696
Share-based compensation (in shares)		13,258
Common stock issued under share-based compensation plans, net of shares withheld for employee taxes	(134)				(134)				(134)
Distributions to equity holders:
Preferred shares	(5,569)					(5,569)			(5,569)
Noncontrolling interests								(6,054)	(6,054)
Common shares	(10,574)					(10,574)			(10,574)
Net (loss) income	(12,221)					(12,221)		3,956	(8,265)
Total other comprehensive loss									(8,265)
Ending Balances at Mar. 31, 2015	$ 3,422,299	$ 2,108	$ 6	$ 171	$ 3,618,769	$ (198,526)	$ (229)	$ 717,395	$ 4,139,694
Ending Balances, shares at Mar. 31, 2015		210,852,089	635,075	17,060,000