Other Liabilities - Schedule of Other Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Other Liabilities
Accounts payable	$ 7,896	$ 7,524
Accrued compensation	2,824	2,664
Deferred revenue	17,988	17,864
Membership deposits and initiation fees	9,806	9,704
Advance deposits	2,380	1,468
Other accrued liabilities	5,576	5,185
Accrued interest expense for Senior Notes held by SPE	2,850	2,850
Total other liabilities	$ 49,320	$ 47,259