CONSOLIDATED STATEMENT 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, 2012	$ (100,053)	$ 600,928	$ (713,697)	$ (4,993)	$ 16,897		$ 523		$ 289
BALANCE (in shares) at Dec. 31, 2012						52,332,012	52,332,012	28,933,859	28,933,859
Increase (Decrease) in Stockholders' Equity
Dividends declared on Class A and Class B Common Stock	(12,048)		(12,048)
Class A Common Stock issued pursuant to employee benefit plans	1,870	1,866					4
Class A Common Stock issued pursuant to employee benefit plans (in shares)							386,380
Class B Common Stock converted into Class A Common Stock							1		(1)
Class B Common Stock converted into Class A Common Stock (in shares)							87,600		(87,600)
Class A Common Stock issued upon exercise of stock options	854	853					1
Class A Common Stock issued upon exercise of stock options (in shares)							73,000
Class A Common Stock sold by variable interest entity	1,045	1,045
Issuance of stocks settled appreciation rights	3,155	3,155
Tax benefit on share based award	388	388
Distributions to noncontrolling interests	(9,329)				(9,329)
Amortization of net periodic pension benefit costs, net of taxes	(39)			(39)
Net income	16,870		16,997		(127)
BALANCE at Mar. 31, 2013	$ (97,287)	$ 608,235	$ (708,748)	$ (5,032)	$ 7,441		$ 529		$ 288
BALANCE (in shares) at Mar. 31, 2013						52,878,992	52,878,992	28,846,259	28,846,259