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Basis of Presentation (Fair Value Of the Company's Derivative Instruments) (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Other Assets $ 12,865 $ 7,216
Accrued and Other Liabilities 2,508 2,165
Interest rate lock commitments    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Other Assets 11,447 5,990
Accrued and Other Liabilities 297 407
Forward contracts    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Other Assets 729 432
Accrued and Other Liabilities 1,646 817
Whole loan commitments    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Other Assets 689 794
Accrued and Other Liabilities $ 565 $ 941