Discontinued Operations (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Discontinued Operation, Income (Loss) from Discontinued Operation Disclosures [Abstract]
Revenues		$ 48,782
Cost of revenues		24,795
Sales and marketing		1,030
General and administrative		7,026
Total costs and operating expenses		32,851
Income from discontinued operations		15,931
Interest and other, net		(1,286)
Income from discontinued operations before income taxes		14,645
Income tax expense		(4,581)
Gain on sale of discontinued operations, net of income taxes	$ 0	4,242
Net income from discontinued operations, net of tax		$ 14,306