Disposition, Deconsolidation and Discontinued Operations (tables) (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Dec. 31, 2015
Dec. 31, 2014
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]        
Service fee and commission income     $ 8,322 $ 30,216
Other (expense) income     (20)  
Other (expense) income       27
General and administrative expenses   $ 25,611 6,462  
Income from discontinued operations before income tax expense     1,860 4,605
Income tax expense $ 443 $ 1,163    
Income from discontinued operations, net of taxes     1,417 3,442
Gain on disposal of discontinued operations before income tax benefit     11,177 0
Income tax benefit     (90) 0
Total gain from discontinued operations, net of taxes     11,267 0
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]        
Cash and cash equivalents       2,792
Service fee receivable       257
Property and equipment, net of accumulated depreciation       193
Goodwill       510
Intangible assets, net of accumulated amortization       31,318
Other assets       327
Assets held for sale 0     54,553
Deferred income tax liability       2,550
Deferred service fees       14,358
Accrued expenses and other liabilities       4,745
Liabilities held for sale $ 0     21,653
Sales [Member]        
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]        
Service fee and commission income     8,342 30,189
Discontinued Operations, Disposed of by Sale [Member]        
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]        
Total gain from discontinued operations, net of taxes     $ 12,684 3,442
Disposal Group Name [Domain]        
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]        
Income taxes recoverable       150
Accrued Income Receivable [Member]        
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]        
Service fee receivable       $ 19,006