XML 48 R34.htm IDEA: XBRL DOCUMENT v3.5.0.2
Investments - Schedule of Amortized Cost and Fair Value on Mortgage-Backed and Asset-Backed Securities (Detail) - USD ($)
$ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Schedule Of Available For Sale Securities [Line Items]    
Cost or Amortized Cost $ 614,968 $ 489,846
Fair Value 618,357 483,318
Mortgage-backed securities [Member] | Agency [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost or Amortized Cost 113,609 74,353
Fair Value 114,464 73,854
Mortgage-backed securities [Member] | Non Agency [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost or Amortized Cost 21,266 10,430
Fair Value 21,404 10,183
Asset-backed securities [Member] | Auto Loans [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost or Amortized Cost 39,937 29,883
Fair Value 40,192 29,712
Asset-backed securities [Member] | Credit Card Receivables [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost or Amortized Cost 36,686 32,225
Fair Value 36,857 31,985
Asset-backed securities [Member] | Other Receivables [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost or Amortized Cost 19,196 4,437
Fair Value 19,314 4,426
Mortgage-Backed and Asset-Backed Securities [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost or Amortized Cost 230,694 151,328
Fair Value $ 232,231 $ 150,160