CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Pension and other post retirement obligations:
Amortization of actuarial (gains)/losses included in net periodic pension cost, gross	$ (77)	$ 1,012	$ (156)	$ 2,021
Tax effect	31	(394)	61	(784)
Amortization of actuarial (gains)/losses included in net periodic pension cost, net	(46)	618	(95)	1,237
Amortization of prior service cost included in net periodic pension cost, gross	(44)	(30)	(87)	(61)
Tax effect	17	12	34	24
Amortization of prior service cost included in net periodic pension cost, net	(27)	(18)	(53)	(37)
Other comprehensive income related to pension and other post retirement obligations, net of taxes	(73)	600	(148)	1,200
Unrealized gains/(losses) on available-for-sale securities:
Net unrealized holding gain/(loss) arising during period, gross	36,465	(50,777)	77,023	(69,649)
Tax effect	(13,484)	19,081	(28,487)	26,179
Net unrealized holding gain/(loss) arising during period, net	22,981	(31,696)	48,536	(43,470)
Reclassification adjustment for net gains included in net income, gross	0	(16,008)	0	(63,799)
Tax effect	0	6,176	0	24,019
Reclassification adjustment for net gains included in net income, net	0	(9,832)	0	(39,780)
Other comprehensive gain/(loss) related to unrealized gain/(loss) on available-for-sale securities, net of taxes	22,981	(41,528)	48,536	(83,250)
Other comprehensive income/(loss), net of tax	22,908	(40,928)	48,388	(82,050)
Net income	23,676	21,122	45,850	41,363
Comprehensive income/(loss)	46,584	(19,806)	94,238	(40,687)
Accumulated Other Comprehensive Income By Component:
Unrealized loss for pension and other postretirement obligations	(11,582)		(11,582)		(11,339)
Tax effect	4,289		4,289		4,194
Net unrealized loss for pension and other postretirement obligations	(7,293)		(7,293)		(7,145)
Unrealized gain/(loss) on available-for-sale securities	46,021		46,021		(31,002)
Tax effect	(16,886)		(16,886)		11,601
Net unrealized gain/(loss) on available-for-sale securities	29,135		29,135		(19,401)
Accumulated other comprehensive income /(loss)	$ 21,842		$ 21,842		$ (26,546)