ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accrued expenses and other current liabilities
Accrued litigation liabilities	$ 736	$ 636
Accrued advertising expense	26,976	20,841
Accrued compensation and benefits	5,626	4,464
Accrued professional fees	1,411	711
Customer deposits and escrows	5,041	4,471
Other	9,613	3,762
Total accrued expenses and other current liabilities	$ 49,403	$ 34,885