CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net earnings (loss)	$ 30,526us-gaap_NetIncomeLoss	$ (2,075)us-gaap_NetIncomeLoss
Adjustments to arrive at net cash provided by operating activities:
Depreciation and amortization	12,384	13,424
Share-based compensation	337us-gaap_ShareBasedCompensation	1,022us-gaap_ShareBasedCompensation
Loss on assets	2,488us-gaap_GainLossOnDispositionOfAssets	39,082us-gaap_GainLossOnDispositionOfAssets
Deferred income taxes	4,382	(7,405)
Changes in operating assets and liabilities	(19,528)	(24,213)
Net cash provided by operating activities	30,589	19,835
Cash flows from investing activities:
Acquisition of property, plant and equipment	(13,431)	(14,711)
Proceeds from sale of assets	12,593	919
Other investing activity	(24)	(94)
Net cash used in investing activities	(862)	(13,886)
Cash flows from financing activities:
Proceeds from additional borrowings	51,112us-gaap_ProceedsFromIssuanceOfDebt	49,254us-gaap_ProceedsFromIssuanceOfDebt
Debt payments	(7,037)us-gaap_RepaymentsOfDebt	(43,096)us-gaap_RepaymentsOfDebt
Purchase of treasury stock	(58,017)	(2,724)
Dividends paid	(11,932)us-gaap_PaymentsOfDividendsCommonStock	(11,539)us-gaap_PaymentsOfDividendsCommonStock
Proceeds from options exercised and other equity transactions	184	331
Net cash used in financing activities	(25,690)	(7,774)
Effect of exchange rate changes on cash and cash equivalents	(6,283)	(548)
Net decrease in cash and cash equivalents	(2,246)	(2,373)
Cash and cash equivalents at beginning of period	20,329	19,836
Cash and cash equivalents at end of period	$ 18,083	$ 17,463

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.