CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock [Member]	Additional Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income/(Loss) [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2012	$ 372,122	$ 1,808	$ 69,989	$ 338,342	$ (7,472)	$ (30,545)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	14,139			14,139
Other comprehensive income (loss)	(11,674)				(11,674)
Omnibus Equity Incentive Plan	366	1	365	0	0	0
Balance at Jun. 30, 2013	368,402	1,809	70,354	346,092	(19,146)	(30,707)
Balance at Mar. 31, 2013	378,383	1,809	70,171	346,035	(8,925)	(30,707)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	6,446	0	0	6,446	0	0
Other comprehensive income (loss)	(10,221)	0	0	0	(10,221)	0
Treasury stock purchase	(162)					(162)
Omnibus Equity Incentive Plan	183	0	183	0	0	0
Cash Dividends	(6,389)	0	0	(6,389)	0	0
Balance at Jun. 30, 2013	368,402	1,809	70,354	346,092	(19,146)	(30,707)
Balance at Dec. 31, 2013	386,195	1,811	71,074	357,083	(13,969)	(29,804)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	16,319	0	0	16,319	0	0
Other comprehensive income (loss)	9,649	0	0	0	9,649	0
Treasury stock purchase	(357)					(357)
Omnibus Equity Incentive Plan	484	1	483
Cash Dividends	(6,544)	0	0	(6,544)	0	0
Balance at Jun. 30, 2014	405,746	1,812	71,557	366,858	(4,320)	(30,161)
Balance at Mar. 31, 2014	399,329	1,812	71,315	364,914	(8,551)	(30,161)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	8,488	0	0	8,488	0	0
Other comprehensive income (loss)	4,231	0	0	0	4,231	0
Omnibus Equity Incentive Plan	242	0	242	0	0	0
Cash Dividends	(6,544)	0	0	(6,544)	0	0
Balance at Jun. 30, 2014	$ 405,746	$ 1,812	$ 71,557	$ 366,858	$ (4,320)	$ (30,161)