Consolidated Statements of Comprehensive Loss (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]
Net loss	$ (1,483)	$ (40,005)	$ (137,314)
Other comprehensive income (loss):
Unrealized gains arising from termination of supplemental executive retirement plans	0	440	0
Tax effect	0	(173)	0
Unrealized gains arising from termination of supplemental executive retirement plans, net of tax	0	267	0
Unrealized holdings gains arising during the period on available-for-sale securities	(26,703)	9,684	8,634
Tax effect	10,256	(3,824)	(3,409)
Unrealized holdings gains arising during the period on available-for-sale securities, net of tax	(16,447)	5,860	5,225
Reclassification adjustment for gain on available-for-sale securities included in net income	(2,772)	(4,121)	(7,296)
Tax effect	1,093	1,627	2,881
Reclassification adjustment for gain on available-for-sale securities included in net income, net of tax	(1,679)	(2,494)	(4,415)
Net actuarial gain on pension and post retirement liability	(302)	503	347
Tax effect	115	(199)	(137)
Net actuarial gain on pension and post retirement liability, net of tax	(187)	304	210
Change in pension and post retirement liability	1,690	(481)	(2,145)
Tax effect	(659)	190	847
Change in pension and post-retirement liability, net of tax	1,031	(291)	(1,298)
Other comprehensive income/(loss), net of tax	(17,282)	3,646	(278)
Comprehensive loss	$ (18,765)	$ (36,359)	$ (137,592)