CONSOLIDATED STATEMENTS OF EQUITY (DEFICIT) (USD $) In Thousands, except Share data, unless otherwise specified	Total USD ($)	Additional Paid-In Capital USD ($)	Accumulated Deficit USD ($)	Accumulated Other Comprehensive Loss USD ($)	Noncontrolling Interests USD ($)	Class A Common Stock	Class A Common Stock Common Stock USD ($)	Class B Common Stock	Class B Common Stock Common Stock USD ($)
BALANCE at Dec. 31, 2008	$ (58,700)	$ 605,865	$ (678,182)	$ (3,495)	$ 16,302		$ 465		$ 345
BALANCE (in shares) at Dec. 31, 2008							46,510,647		34,453,859
Increase (Decrease) in Stockholders' Equity
Class A Common Stock issued pursuant to employee benefit plans	1,382	1,378					4
Class A Common Stock issued pursuant to employee benefit plans (in shares)							401,423
Class B Common Stock converted into Class A Common Stock							20		(20)
Class B Common Stock converted into Class A Common Stock (in shares)							2,000,000		(2,000,000)
Contribution from noncontrolling interests, net of distributions	26				26
Repurchase of 1,536,633 shares of Class A Common Stock	(1,454)	(1,439)					(15)
Repurchase of Class A Common Stock (in shares)	(1,536,633)						(1,536,633)
Removal of noncontrolling interest deficit related to disposition of other operating divisions companies	542				542
Tax benefit (provision) on share based awards	(244)	(244)
Purchase of subsidiary shares from noncontrolling interest	(5,027)	(220)			(4,807)
Amortization of net periodic pension benefit costs, net of taxes	(718)			(718)
Net income (loss)	(138,029)		(135,694)		(2,335)
BALANCE at Dec. 31, 2009	(202,222)	605,340	(813,876)	(4,213)	9,728		474		325
BALANCE (in shares) at Dec. 31, 2009							47,375,437		32,453,859
Increase (Decrease) in Stockholders' Equity
Dividends declared on Class A and Class B Common Stock	(34,225)		(34,225)
Class A Common Stock issued pursuant to employee benefit plans	4,428	4,423					5
Class A Common Stock issued pursuant to employee benefit plans (in shares)							538,575
Class B Common Stock converted into Class A Common Stock							24		(24)
Class B Common Stock converted into Class A Common Stock (in shares)							2,370,040		(2,370,040)
Tax benefit (provision) on share based awards	(123)	(123)
Distributions to noncontrolling interest	(287)				(287)
Amortization of net periodic pension benefit costs, net of taxes	299			299
Net income (loss)	75,048		76,148		(1,100)
BALANCE at Dec. 31, 2010	(157,082)	609,640	(771,953)	(3,914)	8,341		503		301
BALANCE (in shares) at Dec. 31, 2010						50,284,052	50,284,052	30,083,819	30,083,819
Increase (Decrease) in Stockholders' Equity
Dividends declared on Class A and Class B Common Stock	(38,356)		(38,356)
Class A Common Stock issued pursuant to employee benefit plans	5,831	5,826					5
Class A Common Stock issued pursuant to employee benefit plans (in shares)							586,759
Class B Common Stock converted into Class A Common Stock							12		(12)
Class B Common Stock converted into Class A Common Stock (in shares)							1,149,960		(1,149,960)
Class A Common Stock sold by variable interest entity	1,808	1,808
6% Notes converted into Class A Common Stock	30	30
6% Notes converted into Class A Common Stock (in shares)							1,315
Tax benefit (provision) on share based awards	734	734
Distributions to noncontrolling interest	(270)				(270)
Issuance of subsidiary share awards	3,201				3,201
Purchase of subsidiary shares from noncontrolling interest	(2,501)	(663)			(1,838)
Amortization of net periodic pension benefit costs, net of taxes	(934)			(934)
Net income (loss)	76,177		75,798		379
BALANCE at Dec. 31, 2011	$ (111,362)	$ 617,375	$ (734,511)	$ (4,848)	$ 9,813		$ 520		$ 289
BALANCE (in shares) at Dec. 31, 2011						52,022,086	52,022,086	28,933,859	28,933,589