Quarterly report pursuant to Section 13 or 15(d)

Derivative Financial Instruments (BS Offsetting) (Details 4)

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Derivative Financial Instruments (BS Offsetting) (Details 4) (Deriviative Contract [Member], USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Deriviative Contract [Member]
    
Derivative Asset, Fair Value, Amount Offset Against Collateral [Abstract]    
Cash collateral received $ (370) $ (360)
Derivative Assets [Abstract]    
Gross amounts offset in the statement of financial position 78,131 111,458
Gross amounts not offset in the statement of financial position - financial instruments 23,061 35,205
Derivative Assets 179,128 153,880
Derivative Asset, Fair Value, Net [Abstract]    
Gross amounts of recognized assets 280,690 300,903
Net amounts of assets presented in the statement of financial position 202,559 189,445
Derivative Liability, Fair Value, Amount Offset Against Collateral [Abstract]    
Cash collateral given (518) 290
Derivative Liabilities [Abstract]    
Gross amounts offset in the statement of financial position (55,703) (76,539)
Gross amounts not offset in the statement of financial position - financial instruments 79,343 86,204
Derivative Liabilities 57,238 33,944
Derivative Liability, Fair Value, Net [Abstract]    
Gross amounts of recognized liabilities 192,802 196,397
Net amounts of assets presented in the statement of financial position $ 137,099 $ 119,858