Quarterly report pursuant to Section 13 or 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
Sep. 30, 2012
Dec. 31, 2011
Accrued income and other assets [Member]
   
Asset derivatives included in accrued income and other assets    
Interest rate contracts designated as hedging instruments $ 188,796 $ 175,932
Interest rate contracts not designated as hedging instruments 337,092 309,496
Foreign exchange contracts not designated as hedging instruments 6,316 4,885
Total derivative assets 532,204 490,313
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 256,306 252,962
Foreign exchange contracts not designated as hedging instruments 4,888 4,318
Total derivative liabilities $ 261,194 $ 257,280