Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2012	Mar. 31, 2011
Operating Activities
Net loss	$ (52,053)	$ (54,733)
Adjustments to reconcile net loss to net cash provided by operating activities
Depreciation, depletion, accretion and amortization	85,167	90,586
Net gain on sale of property, plant & equipment and businesses	(17,862)	(12,738)
Contributions to pension plans	(1,124)	(1,013)
Share-based compensation	1,877	3,676
Deferred tax provision	(30,966)	(50,563)
Changes in assets and liabilities before initial effects of business acquisitions and dispositions	45,828	68,374
Other, net	(1,723)	461
Net cash provided by operating activities	29,144	44,050
Investing Activities
Purchases of property, plant & equipment	(18,848)	(24,207)
Proceeds from sale of property, plant & equipment	10,750	592
Proceeds from sale of businesses, net of transaction costs	11,827	12,284
Other, net	31	400
Net cash provided by (used for) investing activities	3,760	(10,931)
Financing Activities
Net short-term borrowings	0	14,500
Payment of current maturities and long-term debt	(90)	(3,059)
Proceeds from issuance of common stock	0	191
Dividends paid	(1,295)	(32,265)
Proceeds from exercise of stock options	3,483	3,112
Other, net	331	25
Net cash provided by (used for) financing activities	2,429	(17,496)
Net increase in cash and cash equivalents	35,333	15,623
Cash and cash equivalents at beginning of year	155,839	47,541
Cash and cash equivalents at end of period	$ 191,172	$ 63,164

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation).