Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash Flows from Operating Activities:
Net income (loss)	$ (21,829)	$ 104,872
Income from discontinued operations		(99,664)
Income (loss) from continuing operations, net of tax	(21,829)	5,208
Adjustments to reconcile income (loss) from continuing operations to net cash flows from operating activities:
Depreciation and amortization	30,501	33,920
Impairment of long-lived assets	9,000
(Gains) losses, net on disposal of property, plant and equipment	(234)	1,260
Deferred income taxes	4,617	18,816
Excess tax benefits of share-based compensation plans	(6,021)	(10,346)
Stock and deferred compensation plans	6,921	7,518
Pension expense, net of payments	2,297	(62,561)
Other changes in certain working capital accounts, net	(25,374)	51,531
Miscellaneous, net	4,623	(2,377)
Net cash provided by continuing operating activities	4,501	42,969
Net cash provided by discontinued operating activities		6,509
Net operating activities	4,501	49,478
Cash Flows from Investing Activities:
Additions to property, plant and equipment	(7,823)	(11,778)
Increase in short-term investments		(12,419)
Proceeds from sale of long-term investments	2,650
Purchase of investments	(7,072)
Proceeds from sale of property, plant and equipment	1,674	480
Changes in restricted cash	(7,510)
Other		(657)
Net cash used in continuing investing activities	(18,081)	(24,374)
Net cash provided by discontinued investing activities		162,675
Net investing activities	(18,081)	138,301
Cash Flows from Financing Activities:
Net payments on variable rate credit facility		(34,900)
Repurchase of Class A Common shares	(39,333)
Dividends paid to noncontrolling interest		(623)
Proceeds from exercise of stock options	2,037	5,275
Tax payments related to shares withheld for vested stock and RSUs	(9,509)	(11,881)
Excess tax benefits from share-based compensation plans	6,021	10,346
Miscellaneous, net	(3,086)	582
Net cash used in continuing financing activities	(43,870)	(31,201)
Change in cash - discontinued operations		5,229
Increase (decrease) in cash and cash equivalents	(57,450)	161,807
Cash and cash equivalents:
Beginning of period	204,924	7,681
End of period	147,474	169,488
Supplemental Cash Flow Disclosures
Income taxes paid	$ 8,312	$ 30,779