Consumer Loans, Credit Quality Information on Consumer Loans, Allowances And Liabilities For Estimated Losses On Consumer Loans and Guarantees of Consumer Loans (Changes In Allowance For Losses) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for losses for Company-owned consumer loans:
Balance at beginning of period	$ 4,911	$ 4,779	$ 4,018
Consumer loan loss provision	30,979	33,201	29,131
Charge-offs	(38,185)	(39,660)	(36,811)
Recoveries	6,457	6,591	8,441
Balance at end of period	4,162	4,911	4,779
Liability for third-party lender-owned consumer loans:
Balance at beginning of period	1,030	872	778
Increase (decrease) in liability	30	158	94
Balance at end of period	1,060	1,030	872
Short Term Loans
Allowance for losses for Company-owned consumer loans:
Balance at beginning of period	3,960	4,039	3,526
Consumer loan loss provision	23,139	27,549	25,308
Charge-offs	(28,956)	(32,972)	(32,335)
Recoveries	4,593	5,344	7,540
Balance at end of period	2,736	3,960	4,039
Liability for third-party lender-owned consumer loans:
Balance at beginning of period	272	308	333
Increase (decrease) in liability	130	(36)	(25)
Balance at end of period	402	272	308
Installment Loans
Allowance for losses for Company-owned consumer loans:
Balance at beginning of period	951	740	492
Consumer loan loss provision	7,840	5,652	3,823
Charge-offs	(9,229)	(6,688)	(4,476)
Recoveries	1,864	1,247	901
Balance at end of period	1,426	951	740
Liability for third-party lender-owned consumer loans:
Balance at beginning of period	758	564	445
Increase (decrease) in liability	(100)	194	119
Balance at end of period	$ 658	$ 758	$ 564