Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current:
Federal	$ (244)	$ (323)	$ (50)
State	(1,543)	(1,439)	(1,381)
Deferred:
Federal	572	830	64
State	70	53	(2)
Income tax expense	(1,145)	(879)	(1,369)
Differences between provision for income taxes from the amount of income tax determined by applying the applicable U.S. statutory federal income tax rate to pretax income from continuing operations
Expected federal tax benefit at statutory rate	(47,906)	(40,271)	(14,952)
Tax impact of passthrough entities	45,842	37,230	22,618
Expected tax benefit at TRS	(2,064)	(3,041)	7,666
Change in valuation allowance	2,203	3,612	(8,741)
State income (expense) benefit, net of federal tax benefit	(1,273)	(1,345)	595
Impact of rate change	42	(94)	146
Other permanent items	(418)	(443)	(394)
Impact of acquired tax attributes	(5)	361	(361)
Impact of provision to return	370	71	(280)
Income tax expense	$ (1,145)	$ (879)	$ (1,369)
Common distributions
Income Taxes
Ordinary income (as a percent)	100.00%	100.00%
Return of capital (as a percent)	0.00%	0.00%
Capital gains (as a percent)	0.00%	0.00%
Total (as a percent)	100.00%	100.00%