Quarterly report pursuant to Section 13 or 15(d)

Securitization of Receivables - Schedule of Fair Values of Retained Assets, Discount Rates Used in Valuing Assets (Detail)

v2.4.0.8
Securitization of Receivables - Schedule of Fair Values of Retained Assets, Discount Rates Used in Valuing Assets (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Minimum [Member]
   
Servicing Assets at Fair Value [Line Items]    
Discount rate 8.00%  
Maximum [Member]
   
Servicing Assets at Fair Value [Line Items]    
Discount rate 10.00%  
Servicing [Member]
   
Servicing Assets at Fair Value [Line Items]    
Amortized cost basis $ 1,127 $ 1,281
Fair value 1,240 1,407
Weighted-average life in years 8 years 8 years
Discount rate 8.00% 8.00%
Fair value that would be decreased based on hypothetical adverse changes in discount rates:    
5% change in discount rate 246 255
10% change in discount rate 403 418
Residual Assets [Member]
   
Servicing Assets at Fair Value [Line Items]    
Amortized cost basis 4,390 4,750
Fair value 4,490 4,863
Fair value that would be decreased based on hypothetical adverse changes in discount rates:    
5% change in discount rate 1,176 1,194
10% change in discount rate $ 1,817 $ 1,842
Residual Assets [Member] | Minimum [Member]
   
Servicing Assets at Fair Value [Line Items]    
Weighted-average life in years 7 years 6 years
Discount rate 8.00% 8.00%
Residual Assets [Member] | Maximum [Member]
   
Servicing Assets at Fair Value [Line Items]    
Weighted-average life in years 19 years 19 years
Discount rate 10.00% 10.00%