Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating activities
Net income	$ 2,802	$ 1,027
Adjustments to reconcile from net income to net cash provided by (used for) operating activities:
Depreciation, depletion and amortization	4,192	5,758
Amortization of deferred financing fees	157	631
Deferred income taxes	8,425	5,150
Other	(1,973)	(8,216)
Working capital changes:
Accounts receivable	35,095	83,716
Inventories	632	3,286
Other current assets	(2,207)	(1,063)
Accounts payable	(12,580)	(24,800)
Income taxes receivable/payable	(6,062)	(9,815)
Other current liabilities	(32,300)	(18,202)
Net cash provided by (used for) operating activities	(3,819)	37,472
Investing activities
Expenditures for property, plant and equipment	(4,359)	(2,386)
Other	1,036	864
Net cash used for investing activities	(3,323)	(1,522)
Financing activities
Additions to long-term debt	137	2,876
Reductions of long-term debt	(2,772)	(363)
Net reductions to revolving credit agreements	(4,195)	(61,488)
Cash dividends paid	(1,804)	(1,850)
Purchase of treasury shares	0	(6,911)
Other	(1,018)	(21)
Net cash used for financing activities	(9,652)	(67,757)
Effect of exchange rate changes on cash	13	(16)
Cash and cash equivalents
Decrease for the period	(16,781)	(31,823)
Balance at the beginning of the period	52,499	61,135
Balance at the end of the period	$ 35,718	$ 29,312