Loans Receivable - Components of Loans Receivable, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016		Sep. 30, 2016	Dec. 31, 2015	[1]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Gross	$ 103,911	$ 98,634
Allowance for Loan Losses	(10,462)	(6,624)	[1]	$ (5,589)	$ (937)
Unamortized Fees	(8,347)	(7,206)
Loans Receivable, Net	85,102	84,804
Credit Card Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Gross	84,240	64,794
Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Gross	$ 19,671	$ 33,840

[1] The Company acquired DAMI on October 15, 2015 and recorded $89.1 million of loans receivable as of the acquisition date. No corresponding allowance for loan losses was recorded as the loans receivable were established at fair value in acquisition accounting. The January 1, 2016 balance represents the provision for loan losses incurred from October 15, 2015 to December 31, 2015.