Stockholders' Deficit (Details 1) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Components of Accumulated other comprehensive loss
Net unrealized gains on securities classified as available-for-sale, net of tax	$ 22,887	$ 21,479
Cumulative foreign currency translation adjustments, net of tax	1,225	1,021
Prior service credit for pension and postretirement benefits, net of tax	1,849	2,034
Unrealized losses on pension and postretirement benefits, net of tax	(60,618)	(62,562)
Accumulated other comprehensive loss	$ (34,657)	$ (38,028)