Accounts Payable and Other Liabilities - Summary of Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Payables and Accruals [Abstract]
Carriers and vendors payable	$ 14,549	$ 11,385
Commissions payable	5,513	5,710
Accrued wages	4,036	4,206
Accrued refunds	2,115	3,238
Accounts payable	792	928
Accrued professional fees	1,150	910
Accrued credit card/ACH fees	406	430
Accrued restructuring	0	3
Other accrued expenses	1,572	2,870
Total accounts payable and accrued expenses	$ 30,133	$ 29,680