Consolidated Statement Of Changes In Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Common Stock [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Non-controlling Interest [Member]	Total
Balance at Dec. 31, 2011	$ 890,314	$ (336,873)	$ (9,880)		$ 331	$ 543,892
Balance, shares at Dec. 31, 2011	92,267,256					92,267,256
Comprehensive income:
Net (loss)		(874)			(6)	(880)
Amortization of pension and postretirement benefit costs, net			438			438
Total comprehensive (loss) income						(442)
Issuances of common stock	576					576
Issuances of common stock, shares	36,023					36,023
Forfeitures of restricted stock				(108)		(108)
Forfeitures of restricted stock, shares	(31,514)
Excess (reduction in) tax benefit on options exercised and vested restricted stock	525					525
Amortization of stock-based compensation	23					23
Treasury shares received in lieu of taxes to be remitted on share awards				(152)		(152)
Treasury shares received in lieu of taxes to be remitted on share award, shares	(9,529)
Balance at Mar. 31, 2012	$ 891,438	$ (337,747)	$ (9,442)	$ (260)	$ 325	$ 544,314
Balance, shares at Mar. 31, 2012	92,262,236					92,262,236