Long-Term Debt, Summary of Long-term Debt, Net of Unamortized Deferred Loan Costs (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Long-term debt, net of unamortized loan costs [Abstract]
Long-term debt, gross	$ 212,629	$ 235,670
Less: deferred loan costs	(2,286)	(4,073)
Total debt including debt held for sale as discontinued operations	210,343	231,597
Less: current portion	(46,046)	(23,308)
Long-term debt, excluding current portion	164,297	208,289
Cash Convertible Notes, Net of Unamortized Discount [Member]
Long-term debt, net of unamortized loan costs [Abstract]
Long-term debt, gross	137,859	130,296
CareFirst Convertible Note [Member]
Long-term debt, net of unamortized loan costs [Abstract]
Long-term debt, gross	0	20,000
Term Loan [Member]
Long-term debt, net of unamortized loan costs [Abstract]
Long-term debt, gross	60,000	80,000
Revolver [Member]
Long-term debt, net of unamortized loan costs [Abstract]
Long-term debt, gross	13,500	0
Capital Lease Obligations and Other [Member]
Long-term debt, net of unamortized loan costs [Abstract]
Long-term debt, gross	$ 1,270	$ 5,374