Parent Company Condensed Financial Information (Statements Of Cash Flows) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Net income $ 21,030 $ 17,435 $ 16,187
Net cash provided by operating activities 26,703 45,239 45,134
Purchases of available for sale securities (51,344) (140,473) (202,273)
Net cash provided by (used in) investing activities (231,795) 99,356 285,324
Net proceeds from issuance of common stock 385 229 127
Purchases of treasury stock (10,302)    
Common stock dividends paid (3,131)    
Preferred stock dividends paid     (4,407)
Net cash used in financing activities 66,189 (152,835) (272,268)
Net increase (decrease) in cash and cash equivalents (138,903) (8,240) 58,190
Beginning of period 279,839 288,079 229,889
End of period 140,936 279,839 288,079
Parent Company [Member]      
Net income 21,030 17,435 16,187
Equity in undistributed income (loss) of subsidiaries (3,851) (1,183) 49,173
Other, net 2,937 (2,341) (5,437)
Net cash provided by operating activities 20,116 13,911 59,923
Purchases of available for sale securities (1,121)   (247)
Sales/Maturities of available for sale securities 2,540 32  
Investment in/capital contribution to other subsidiaries   15,000  
Net cash provided by (used in) investing activities 1,419 15,032 (247)
Net proceeds from issuance of common stock 1,386 2,708 925
Redemption of of subordinated debentures   (35,570)  
Purchases of treasury stock (10,302)    
Common stock dividends paid (3,132)    
Preferred stock dividends paid     (74,330)
Other, net   (2,287) (76)
Net cash used in financing activities (12,048) (35,149) (73,481)
Net increase (decrease) in cash and cash equivalents 9,487 (6,206) (13,805)
Beginning of period 12,039 18,245 32,050
End of period $ 21,526 $ 12,039 $ 18,245