Annual report pursuant to Section 13 and 15(d)

Derivative Financial Instruments (Hedging instruments) (Details 1)

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Derivative Financial Instruments (Hedging instruments) (Details 1) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Accrued income and other assets [Member]
   
Asset derivatives included in accrued income and other assets    
Interest rate contracts designated as hedging instruments $ 175,932 $ 127,346
Interest rate contracts not designated as hedging instruments 309,496 263,015
Foreign exchange contracts not designated as hedging instruments 4,885 2,845
Total derivative assets 490,313 393,206
Accrued expenses and other liabilities [Member]
   
Liability derivatives included in accrued expenses and other liabilities    
Interest rate contracts designated as hedging instruments 0 0
Interest rate contracts not designated as hedging instruments 252,962 233,805
Foreign exchange contracts not designated as hedging instruments 4,318 3,107
Total derivative liabilities $ 257,280 $ 236,912