Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 3,824	$ (100,810)
Adjustments to reconcile net loss to cash provided (used) by operating activities:
Deferred income taxes	(648)	(39,690)
Depreciation	9,705	10,620
Amortization	5,218	7,818
Asset impairments	0	135,884
Equity loss of nonconsolidated investments	5	946
(Gain) loss on sales and disposals of property, plant, and equipment	(347)	209
Share-based compensation	1,228	875
Income tax deficiency from share-based compensation	0	124
Change in operating assets and liabilities
Accounts receivable	(11,899)	13,491
Inventories	(19,336)	3,188
Other current assets	(786)	(379)
Prepaid income tax	12,569	(6,436)
Other noncurrent assets	719	117
Dividends from LB Pipe & Coupling Products, LLC	22,017	(13,256)
Accounts payable	3,339	866
Deferred revenue	2,734	(2,294)
Accrued payroll and employee benefits	(763)	956
Other current liabilities	(63)	(353)
Net cash provided by operating activities	27,516	11,876
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from the sale of property, plant, and equipment	1,388	923
Capital expenditures on property, plant, and equipment	(5,335)	(6,507)
Loans and capital contributions to equity method investment	0	(635)
Net cash used by investing activities	(3,947)	(6,219)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of debt	(113,119)	(134,200)
Proceeds from debt	91,838	101,075
Financing fees	0	(712)
Treasury stock acquisitions	(103)	(265)
Cash dividends on common stock paid to shareholders	0	(1,244)
Income tax deficiency from share-based compensation	0	(124)
Net cash used by financing activities	(21,384)	(35,470)
Effect of exchange rate changes on cash and cash equivalents	2,460	152
Net increase (decrease) in cash and cash equivalents	4,645	(29,661)
Cash and cash equivalents at beginning of period	30,363	33,312
Cash and cash equivalents at end of period	35,008	3,651
Supplemental disclosure of cash flow information:
Interest paid	5,599	3,485
Income taxes (received) paid	$ (11,233)	$ 3,991