Property and Equipment - Schedule of Depreciation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Property and Equipment
Depreciation	$ 1,430	$ 2,699
Service costs
Property and Equipment
Depreciation	743	1,464
Sales and marketing
Property and Equipment
Depreciation	9	13
Product development
Property and Equipment
Depreciation	23	41
General and administrative
Property and Equipment
Depreciation	$ 655	$ 1,181