Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 602	$ (94,828)
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Deferred income taxes	(432)	(38,475)
Depreciation	6,527	7,325
Amortization	3,454	6,055
Asset impairments	0	128,938
Equity loss of nonconsolidated investments	55	683
Loss on sales and disposals of property, plant, and equipment	122	240
Stock-based compensation	725	555
Income tax deficiency from stock-based compensation	0	124
Change in operating assets and liabilities
Accounts receivable	(9,951)	(2,755)
Inventories	(487)	(231)
Other current assets	(1,439)	(959)
Prepaid income tax	12,867	(4,262)
Other noncurrent assets	474	(60)
Dividends from LB Pipe & Coupling Products, LLC	19,534	3,784
Accounts payable	(1,839)	2,412
Deferred revenue	878	(2,658)
Accrued payroll and employee benefits	(1,167)	812
Other current liabilities	(2)	(145)
Net cash provided by operating activities	29,921	6,555
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from the sale of property, plant, and equipment	143	768
Capital expenditures on property, plant, and equipment	(4,597)	(5,070)
Loans and capital contributions to equity method investment	0	(575)
Net cash used by investing activities	(4,454)	(4,877)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of debt	(82,553)	(68,174)
Proceeds from debt	60,972	67,789
Financing fees	0	(712)
Treasury stock acquisitions	(97)	(265)
Cash dividends on common stock paid to shareholders	0	(829)
Income tax deficiency from stock-based compensation	0	(124)
Net cash used by financing activities	(21,678)	(2,315)
Effect of exchange rate changes on cash and cash equivalents	1,305	130
Net increase (decrease) in cash and cash equivalents	5,094	(507)
Cash and cash equivalents at beginning of period	30,363	33,312
Cash and cash equivalents at end of period	35,457	32,805
Supplemental disclosure of cash flow information:
Interest paid	3,896	2,211
Income taxes (received) paid, net	$ (11,480)	$ 3,987