CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income/(Loss) [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2014	$ 394,214	$ 1,815	$ 72,405	$ 377,970	$ (14,529)	$ (43,447)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	7,761	0	0	7,761	0	0
Other comprehensive income (loss)	7,226	0	0	0	7,226	0
Omnibus Equity Incentive Plan	171	0	171	0	0	0
Payments for Repurchase of Common Stock	(345)	0	0	0	0
Balance at Mar. 31, 2015	409,027	1,815	72,576	385,731	(7,303)	(43,792)
Balance at Dec. 31, 2015	410,316	1,817	73,396	395,633	(9,401)	(51,129)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	13,675	0	0	13,675	0	0
Other comprehensive income (loss)	4,342	0	0	0	4,342	0
Omnibus Equity Incentive Plan	171	1	170	0	0	0
Payments for Repurchase of Common Stock	(16,592)	0	0	0	0
Balance at Mar. 31, 2016	$ 411,912	$ 1,818	$ 73,566	$ 409,308	$ (5,059)	$ (67,721)