Income Taxes - Schedule of Deferred Tax Assets and liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred tax liabilities:
Property and equipment	$ (1,636)
Unbilled rent	(4,495)	$ (2,070)
Partnership investments	(3,362)	(3,468)
Other	(6,141)	(3,759)
Total deferred tax liabilities	(15,634)	(9,297)
Deferred tax assets:
Operating loss and interest deduction carry forwards	19,016	19,546
Property and equipment		2,373
Other	10,314	3,971
Total deferred tax assets	29,330	25,890
Valuation allowance	(23,005)	(16,831)
Total net deferred tax assets	6,325	9,059
Net deferred tax (liability)	$ (9,309)	$ (238)