XML 42 R49.htm IDEA: XBRL DOCUMENT v2.4.0.8
Financial Instruments - Schedule of Gross Amounts and Offsetting Amounts of Reverse Repurchase Agreements, Repurchase Agreements, Securities Borrowed and Securities Lending Transactions (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Securities Financing Transaction [Line Items]    
Gross Amounts of Recognized Assets $ 3,646,978 $ 1,525,881
Gross Amounts Offset in the Statement of Financial Position 3,455,764 1,160,239
Net Amounts of Assets Presented on the Balance Sheet 191,214 365,642
Financial Instruments (191,214) (365,642)
Cash Collateral Received      
Net Amount      
Gross Amounts of Recognized Liabilities 4,186,666 1,743,017
Gross Amounts Offset in the Statement of Financial Position 3,455,764 1,160,239
Net Amounts of Liabilities Presented on the Balance Sheet 730,902 582,778
Financial Instruments (730,902) (582,778)
Cash Collateral Pledged      
Net Amount      
Repurchase Agreements [Member]
   
Securities Financing Transaction [Line Items]    
Gross Amounts of Recognized Liabilities 3,951,786 1,552,630
Gross Amounts Offset in the Statement of Financial Position 3,455,764 1,160,239
Net Amounts of Liabilities Presented on the Balance Sheet 496,022 392,391
Financial Instruments (496,022) (392,391)
Cash Collateral Pledged      
Net Amount      
Securities Lending [Member]
   
Securities Financing Transaction [Line Items]    
Gross Amounts of Recognized Liabilities 234,880 190,387
Net Amounts of Liabilities Presented on the Balance Sheet 234,880 190,387
Financial Instruments (234,880) (190,387)
Cash Collateral Pledged      
Net Amount      
Reverse Repurchase Agreements [Member]
   
Securities Financing Transaction [Line Items]    
Gross Amounts of Recognized Assets 3,455,764 1,160,239
Gross Amounts Offset in the Statement of Financial Position 3,455,764 1,160,239
Cash Collateral Received      
Net Amount      
Securities Borrowing [Member]
   
Securities Financing Transaction [Line Items]    
Gross Amounts of Recognized Assets 191,214 365,642
Net Amounts of Assets Presented on the Balance Sheet 191,214 365,642
Financial Instruments (191,214) (365,642)
Cash Collateral Received      
Net Amount