Income Taxes - Reconciliation of Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Amount
Pre-tax income (loss) from continuing operations									$ (32,853)	$ (11,654)	$ 12,485
REIT earnings without income tax provision									22,745	12,121	(13,083)
Noncontrolling interest									9,312	430	2,588
State income tax, net of federal tax benefit									(778)	(1,090)	185
Effect of permanent differences									(6)	(41)	(291)
Valuation allowance									0	479	(479)
Other - Peachtree									0	(422)	0
Other									(323)	38	0
Total income tax (expense) benefit	$ (894)	$ (491)	$ (326)	$ (192)	$ 624	$ (164)	$ (257)	$ (342)	$ (1,903)	$ (139)	$ 1,405
Percentage
Pre-tax income (loss) from continuing operations (as a percent)									34.00%	34.00%	34.00%
REIT earnings without income tax provision (as a percent)									(23.50%)	(35.40%)	(35.60%)
Noncontrolling interest (as a percent)									(9.60%)	(1.30%)	7.00%
State income tax, net of federal tax benefit (as a percent)									0.80%	3.20%	0.50%
Effect of permanent differences (as a percent)									(0.00%)	0.10%	(0.80%)
Valuation allowance (as a percent)									(0.00%)	(1.40%)	(1.30%)
Other - Peachtree (as a percent)									(0.00%)	1.20%	(0.00%)
Other (as a percent)									0.30%	(0.10%)	(0.00%)
Total income tax (expense) benefit (as a percent)									2.00%	0.30%	3.80%