Consumer Loans, Credit Quality Information And Allowances And Liabilities For Estimated Losses On Consumer Loans (Components Of Company-Owned Consumer Loans And Receivables) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014
Consumer Loans, Credit Quality Information And Allowances And Liabilities For Losses On Consumer Loans [Line Items]
Current loans	$ 25,289		$ 28,331	$ 27,907
Delinquent loans	4,245		5,856	6,019
Total consumer loans, gross	29,534		34,187	33,926
Less: allowance for losses	(2,308)	$ (2,251)	(2,896)	(3,533)	$ (3,225)	$ (4,162)
Consumer loans, net	27,226		31,291	30,393
Short-Term Loans [Member]
Consumer Loans, Credit Quality Information And Allowances And Liabilities For Losses On Consumer Loans [Line Items]
Current loans	23,726		26,304	25,573
Delinquent loans	2,539		2,723	3,519
Total consumer loans, gross	26,265		29,027	29,092
Less: allowance for losses	(1,350)	(1,164)	(1,651)	(2,106)	(2,034)	(2,736)
Consumer loans, net	24,915		27,376	26,986
Installment Loans [Member]
Consumer Loans, Credit Quality Information And Allowances And Liabilities For Losses On Consumer Loans [Line Items]
Current loans	1,563		2,027	2,334
Delinquent loans	1,706		3,133	2,500
Total consumer loans, gross	3,269		5,160	4,834
Less: allowance for losses	(958)	$ (1,087)	(1,245)	(1,427)	$ (1,191)	$ (1,426)
Consumer loans, net	$ 2,311		$ 3,915	$ 3,407