Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenue from contracts with customers	$ 28,552	$ 31,695	$ 87,298	$ 93,336
Lead Fees
Revenue from contracts with customers	22,564	24,986	69,953	71,277
Click Advertising
Revenue from contracts with customers	4,948	5,559	14,463	18,020
Display and Other Advertising
Revenue from contracts with customers	1,020	1,047	2,815	3,623
Advertising
Revenue from contracts with customers	5,968	6,606	17,278	21,643
Other Revenues
Revenue from contracts with customers	$ 20	$ 103	$ 67	$ 416