Derivative Financial Instruments Notional Amounts and Fair Values of Derivative Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Foreign Currency Open Position	$ 500,000
Derivative, Fair Value, Net	719	2,197
Negative Fair Values [Member]
Asset (Liability) Fair Value	(9,452)	888
Interest Rate Lock Commitments [Member]
Asset (Liability) Fair Value	2,400	808
Interest Rate Lock Commitments [Member] | Positive Fair Values [Member]
Asset, Fair Value	2,420	867
Derivative, Notional Amount	129,053	75,217
Interest Rate Lock Commitments [Member] | Negative Fair Values [Member]
Derivative, Notional Amount	1,180	11,393
Liability, Fair Value	(20)	(59)
Forward Commitments [Member]
Asset (Liability) Fair Value	(1,743)	1,258
Forward Commitments [Member] | Positive Fair Values [Member]
Asset, Fair Value	5	1,263
Derivative, Notional Amount	1,400	87,904
Forward Commitments [Member] | Negative Fair Values [Member]
Derivative, Notional Amount	124,288	2,373
Liability, Fair Value	(1,748)	(5)
InterestRateSwapWithCustomer [Domain]
Asset (Liability) Fair Value	9,452	(888)
InterestRateSwapWithCustomer [Domain] | Positive Fair Values [Member]
Asset, Fair Value	10,042	2,105
Derivative, Notional Amount	318,089	111,899
InterestRateSwapWithCustomer [Domain] | Negative Fair Values [Member]
Derivative, Notional Amount	54,098	105,673
Liability, Fair Value	(590)	(2,993)
InterestRateSwapWithCounterparty [Domain] | Positive Fair Values [Member]
Asset, Fair Value	590	2,993
Derivative, Notional Amount	54,098	105,673
InterestRateSwapWithCounterparty [Domain] | Negative Fair Values [Member]
Derivative, Notional Amount	318,089	111,899
Liability, Fair Value	(10,042)	(2,105)
ForeignCurrencyForwardWithCustomer [Domain]
Foreign Currency Derivatives at Fair Value, Net	(22)	(319)
ForeignCurrencyForwardWithCustomer [Domain] | Positive Fair Values [Member]
Derivative, Notional Amount	5,012	2,150
Foreign Currency Contract, Asset, Fair Value Disclosure	81	24
ForeignCurrencyForwardWithCustomer [Domain] | Negative Fair Values [Member]
Derivative, Notional Amount	11,088	12,775
Foreign Currency Contracts, Liability, Fair Value Disclosure	(103)	(343)
ForeignCurrencyForwardWithCorrespondentBanks [Domain]
Foreign Currency Derivatives at Fair Value, Net	84	450
ForeignCurrencyForwardWithCorrespondentBanks [Domain] | Positive Fair Values [Member]
Derivative, Notional Amount	11,046	17,348
Foreign Currency Contract, Asset, Fair Value Disclosure	144	498
ForeignCurrencyForwardWithCorrespondentBanks [Domain] | Negative Fair Values [Member]
Derivative, Notional Amount	5,149	5,872
Foreign Currency Contracts, Liability, Fair Value Disclosure	$ (60)	$ (48)