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Basis of Presentation (Fair Value Of the Company's Derivative Instruments) (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Other Assets $ 11,795 $ 18,414
Accrued and Other Liabilities 1,833 2,368
Interest rate lock commitments    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Other Assets 10,434 9,194
Accrued and Other Liabilities 400 501
Forward contracts    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Other Assets 1,124 8,085
Accrued and Other Liabilities 607 1,004
Whole loan commitments    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Other Assets 237 1,135
Accrued and Other Liabilities $ 826 $ 863