Quarterly report pursuant to Section 13 or 15(d)

Securitization of Receivables - Additional Information (Detail)

v2.4.0.8
Securitization of Receivables - Additional Information (Detail) (USD $)
3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]    
Gain on securitization of receivables $ 1,974,000  
Account receivables managed 2,100,000,000 2,100,000,000
Securitization credit losses 0 0
Asset-backed Securities, Securitized Loans and Receivables [Member]
   
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]    
Account receivables managed $ 1,600,000,000 $ 1,600,000,000
Minimum [Member]
   
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]    
Annual servicing fees 0.05%  
Maximum [Member]
   
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]    
Annual servicing fees 0.20%