XML 127 R54.htm IDEA: XBRL DOCUMENT v2.4.0.8
Derivative Instruments (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Derivative Instruments [Line Items]    
Notional Amount $ 7,726,973 $ 6,598,107
Carrying Value / Fair Value of Assets 146,572 190,634
Carrying Value / Fair Value of Liabilities 1,027,941 1,209,616
Not Designated as Hedging Instrument
    
Derivative Instruments [Line Items]    
Notional Amount 6,946,734 5,911,320
Carrying Value / Fair Value of Assets 128,274 190,290
Carrying Value / Fair Value of Liabilities 1,020,385 1,181,432
Not Designated as Hedging Instrument | Interest Rate Swaps
    
Derivative Instruments [Line Items]    
Notional Amount 1,531,811 2,195,059
Carrying Value / Fair Value of Assets 54,742 123,085
Carrying Value / Fair Value of Liabilities 16,971 17,867
Not Designated as Hedging Instrument | Interest Rate Options
    
Derivative Instruments [Line Items]    
Notional Amount 240,000 0
Carrying Value / Fair Value of Assets 8,073 0
Carrying Value / Fair Value of Liabilities 0 0
Not Designated as Hedging Instrument | Financial Futures
    
Derivative Instruments [Line Items]    
Notional Amount 110,328 127,877
Carrying Value / Fair Value of Assets 0 0
Carrying Value / Fair Value of Liabilities 0 0
Not Designated as Hedging Instrument | Foreign Currency Forwards
    
Derivative Instruments [Line Items]    
Notional Amount 83,387 74,400
Carrying Value / Fair Value of Assets 148 1,017
Carrying Value / Fair Value of Liabilities 9,484 2,105
Not Designated as Hedging Instrument | Consumer Price Index Swaps
    
Derivative Instruments [Line Items]    
Notional Amount 74,840 85,135
Carrying Value / Fair Value of Assets 234 1,446
Carrying Value / Fair Value of Liabilities 257 0
Not Designated as Hedging Instrument | Credit Default Swaps
    
Derivative Instruments [Line Items]    
Notional Amount 709,700 714,000
Carrying Value / Fair Value of Assets 3,975 2,228
Carrying Value / Fair Value of Liabilities 6,632 5,922
Not Designated as Hedging Instrument | Equity Options
    
Derivative Instruments [Line Items]    
Notional Amount 727,641 696,776
Carrying Value / Fair Value of Assets 61,102 62,514
Carrying Value / Fair Value of Liabilities 0 0
Not Designated as Hedging Instrument | Embedded Derivatives In Modified Coinsurance Or Funds Withheld Arrangements
    
Derivative Instruments [Line Items]    
Notional Amount 0 0
Carrying Value / Fair Value of Assets 0 0
Carrying Value / Fair Value of Liabilities 108,473 243,177
Not Designated as Hedging Instrument | Embedded Derivatives In Indexed Annuity Products
    
Derivative Instruments [Line Items]    
Notional Amount 0 0
Carrying Value / Fair Value of Assets 0 0
Carrying Value / Fair Value of Liabilities 793,586 740,256
Not Designated as Hedging Instrument | Embedded Derivatives In Variable Annuity Products
    
Derivative Instruments [Line Items]    
Notional Amount 0 0
Carrying Value / Fair Value of Assets 0 0
Carrying Value / Fair Value of Liabilities 84,982 172,105
Not Designated as Hedging Instrument | Synthetic Guaranteed Investment Contracts
    
Derivative Instruments [Line Items]    
Notional Amount 3,469,027 2,018,073
Carrying Value / Fair Value of Assets 0 0
Carrying Value / Fair Value of Liabilities 0 0
Designated As Hedging Instrument
    
Derivative Instruments [Line Items]    
Notional Amount 780,239 686,787
Carrying Value / Fair Value of Assets 18,298 344
Carrying Value / Fair Value of Liabilities 7,556 28,184
Designated As Hedging Instrument | Interest Rate Swaps
    
Derivative Instruments [Line Items]    
Notional Amount 50,349 57,275
Carrying Value / Fair Value of Assets 0 344
Carrying Value / Fair Value of Liabilities 5,058 786
Designated As Hedging Instrument | Foreign Currency Swaps
    
Derivative Instruments [Line Items]    
Notional Amount 729,890 629,512
Carrying Value / Fair Value of Assets 18,298 0
Carrying Value / Fair Value of Liabilities $ 2,498 $ 27,398