Unaudited Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating activities
Net income (loss)	$ (1,524)	$ 4,422
Adjustments to reconcile from net income (loss) to net cash used for operating activities:
Depreciation, depletion and amortization	5,979	5,372
Amortization of deferred financing fees	184	149
Deferred income taxes	1,796	1,810
Other	(3,559)	(16,548)
Working capital changes:
Accounts receivable	46,307	32,584
Inventories	(9,469)	7,684
Other current assets	(7,949)	(7,735)
Accounts payable	(26,899)	(37,862)
Other current liabilities	(30,882)	(14,902)
Net cash used for operating activities	(26,016)	(25,026)
Investing activities
Expenditures for property, plant and equipment	(31,845)	(7,465)
Other	(57)	837
Net cash used for investing activities	(31,902)	(6,628)
Financing activities
Additions to long-term debt	1,553	2,793
Reductions of long-term debt	(354)	(132)
Net additions (reductions) to revolving credit agreements	38,352	(6,801)
Cash dividends paid	(1,964)	(2,102)
Purchase of treasury shares	(4,986)	(5,100)
Other	0	3
Net cash provided by (used for) financing activities	32,601	(11,339)
Effect of exchange rate changes on cash	(3)	8
Cash and cash equivalents
Decrease for the period	(25,320)	(42,985)
Balance at the beginning of the period	95,390	139,855
Balance at the end of the period	$ 70,070	$ 96,870