Purchased Receivables - Allowance on Net Purchase Receivables (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Purchased Receivable Allowance for Loan Loss Reserve [Roll Forward]
Balance at beginning of period	$ 242	$ 292	$ 273	$ 323
Charge-offs	(54)	(399)	(446)	(768)
Balance at end of period	483	292	483	292
Purchased Receivable
Purchased Receivable Allowance for Loan Loss Reserve [Roll Forward]
Charge-offs	0	0	(240)	0
Recoveries	0	0	3	0
Charge-offs net of recoveries	0	0	(237)	0
Reserve for purchased receivables	$ 241	$ 0	$ 447	$ (31)