Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash Flows from Operating Activities:
Net income (loss)	$ (11,107)	$ 98,627
Income from discontinued operations		(98,844)
Income (loss) from continuing operations, net of tax	(11,107)	(217)
Adjustments to reconcile loss from continuing operations to net cash flows from operating activities:
Depreciation and amortization	20,449	23,196
(Gains) losses, net on disposal of property, plant and equipment	242	735
Deferred income taxes	4,677	17,290
Excess tax benefits of share-based compensation plans	(6,021)	(8,783)
Stock and deferred compensation plans	5,751	5,203
Pension expense, net of payments	1,442	(62,651)
Other changes in certain working capital accounts, net	(29,536)	10,232
Miscellaneous, net	2,112	1,465
Net cash used in continuing operating activities	(11,991)	(13,530)
Net cash provided by discontinued operating activities		2,754
Net operating activities	(11,991)	(10,776)
Cash Flows from Investing Activities:
Additions to property, plant and equipment	(4,544)	(7,265)
Increase in short-term investments		(5,181)
Proceeds from sale of long-term investments	2,650
Purchase of investments	(1,624)	(23)
Proceeds from sale of property, plant and equipment	513	505
Changes in restricted cash	(7,510)
Purchase of intangible assets		(850)
Net cash used in continuing investing activities	(10,515)	(12,814)
Net cash provided by discontinued investing activities		162,960
Net investing activities	(10,515)	150,146
Cash Flows from Financing Activities:
Net payments on variable rate credit facility		(34,900)
Repurchase of Class A Common shares	(23,295)
Dividends paid to noncontrolling interest		(623)
Proceeds from exercise of stock options	1,670	4,568
Tax payments related to shares withheld for vested stock and RSUs	(9,368)	(9,866)
Excess tax benefits from share-based compensation plans	6,021	8,783
Miscellaneous, net	(472)	2,208
Net cash used in continuing financing activities	(25,444)	(29,830)
Change in cash - discontinued operations		5,229
Increase (decrease) in cash and cash equivalents	(47,950)	114,769
Cash and cash equivalents:
Beginning of period	204,924	7,681
End of period	156,974	122,450
Supplemental Cash Flow Disclosures
Income taxes paid	$ 7,995	$ 1,711