Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Income from continuing operations	$ 19,616	$ 22,001
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Deferred income taxes	(641)	(661)
Depreciation and amortization	9,247	7,098
Equity in income of nonconsolidated investment	(823)	(892)
Loss on sales and disposals of property, plant, and equipment	15	48
Share-based compensation	2,403	1,528
Excess income tax benefit from share-based compensation	(283)	(192)
Change in operating assets and liabilities, net of acquisitions:
Accounts receivable	7,820	(28,931)
Inventories	(11,839)	13,392
Other current assets	(437)	(1,676)
Prepaid income tax	4,978	(3,418)
Other noncurrent assets	(448)	209
Dividends from LB Pipe & Coupling Products, LLC	630	558
Accounts payable	13,727	6,298
Deferred revenue	4,092	(3,454)
Accrued payroll and employee benefits	475	(2,544)
Other current liabilities	1,206	(6,231)
Other liabilities	(114)	(666)
Net cash provided (used) by continuing operating activities	49,624	2,467
Net cash provided by discontinued operations	114	257
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from the sale of property, plant, and equipment	184
Capital expenditures on property, plant and equipment	(11,593)	(5,648)
Acquisitions	(12,786)
Capital contributions to equity method investments	(82)
Net cash used by continuing investing activities	(24,277)	(5,648)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of other long-term debt	(78)	(14)
Proceeds from other long-term debt	316
Proceeds from exercise of stock options and stock awards	131	35
Financing Fees	(473)
Treasury stock acquisitions	(918)	(633)
Cash dividends on common stock paid to shareholders	(931)	(931)
Excess income tax benefit from share-based compensation	283	192
Net cash used by continuing financing activities	(1,670)	(1,351)
Effect of exchange rate changes on cash and cash equivalents	(1,898)	(1,192)
Net increase (decrease) in cash and cash equivalents	21,893	(5,467)
Cash and cash equivalents at beginning of period	64,623	101,464
Cash and cash equivalents at end of period	86,516	95,997
Supplemental Disclosure of Cash Flow Information:
Interest paid	267	257
Income taxes paid	$ 4,849	$ 14,747