Allowance for Losses and Credit Quality of Consumer Loans - Changes in the Allowance of Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Sep. 30, 2015
Unsecured short-term consumer loans
Allowance for losses on consumer loans
Allowance Balance at Beginning of Period	$ 11,498	$ 14,645	$ 14,645
Charge-offs	(3,077)	(9,051)
Recoveries	1,641	3,291
Provision (Benefit)	(818)	4,996
Translation Adjustment	(252)	(513)
Allowance Balance at End of Period (a)	8,992	13,368	11,498
Financing Receivable at End of Period (a)	11,149	31,159
Secured short-term consumer loans
Allowance for losses on consumer loans
Allowance Balance at Beginning of Period	2,004	1,049	1,049
Charge-offs	(2,229)	(14,437)
Recoveries	436	12,989
Provision (Benefit)	(211)	1,533
Translation Adjustment	0	0
Allowance Balance at End of Period (a)	0	1,134	2,004
Financing Receivable at End of Period (a)	0	7,866
Unsecured long-term consumer loans
Allowance for losses on consumer loans
Allowance Balance at Beginning of Period	50,645	38,087	38,087
Charge-offs	(744)	(167)
Recoveries	0	0
Provision (Benefit)	11,802	7,612
Translation Adjustment	(545)	(3,350)
Allowance Balance at End of Period (a)	61,158	42,182	50,645
Financing Receivable at End of Period (a)	$ 162,678	$ 157,368	$ 158,293
Grupo Finmart
Financing Receivable, Allowance for Credit Losses [Line Items]
Reserve on past due loans			100.00%
Grupo Finmart | Unsecured long-term consumer loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Maximum collection period			4 years
Grupo Finmart | Unsecured Long Term Consumer Loans - In Payroll
Financing Receivable, Allowance for Credit Losses [Line Items]
Threshold period past due for write-off of financing receivable			180 days