Unaudited Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Operating activities
Net income (loss)	$ 1,027	$ (1,524)
Adjustments to reconcile from net income (loss) to net cash provided by (used for) operating activities:
Depreciation, depletion and amortization	5,758	5,979
Amortization of deferred financing fees	631	184
Deferred income taxes	5,150	1,796
Other	(8,216)	(3,559)
Working capital changes:
Accounts receivable	83,716	46,307
Inventories	3,286	(9,469)
Other current assets	(8,641)	(7,949)
Accounts payable	(24,800)	(26,899)
Other current liabilities	(20,439)	(30,882)
Net cash provided by (used for) for operating activities	37,472	(26,016)
Investing activities
Expenditures for property, plant and equipment	(2,386)	(31,845)
Other	864	(57)
Net cash used for investing activities	(1,522)	(31,902)
Financing activities
Additions to long-term debt	2,876	1,553
Reductions of long-term debt	(363)	(354)
Net additions (reductions) to revolving credit agreements	(61,488)	38,352
Cash dividends paid	(1,850)	(1,964)
Purchase of treasury shares	(6,911)	(4,986)
Other	(21)	0
Net cash provided by (used for) financing activities	(67,757)	32,601
Effect of exchange rate changes on cash	(16)	(3)
Cash and cash equivalents
Decrease for the period	(31,823)	(25,320)
Balance at the beginning of the period	61,135	95,390
Balance at the end of the period	$ 29,312	$ 70,070