XML 37 R24.htm IDEA: XBRL DOCUMENT v3.3.0.814
Finance Receivables, Allowance for Credit Losses, and Credit Quality Information - Summary of Changes in Allowance for Credit Losses (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Receivables [Abstract]        
Balance at beginning of period $ 36,171 $ 34,584 $ 40,511 $ 30,089
Provision for credit losses 14,085 22,542 35,899 53,106
Charge-offs (13,158) (12,090) (40,706) (38,976)
Charge-offs (180+ policy change)   (2,106)   (2,106)
Recoveries 688 371 2,082 1,188
Balance at end of period $ 37,786 $ 43,301 $ 37,786 $ 43,301