Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Income from continuing operations	$ 8,122	$ 16,250
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Deferred income taxes	(8,797)	(904)
Depreciation and amortization	9,575	8,811
Equity in income of nonconsolidated investment	(643)	(570)
Loss on sale of property, plant and equipment	314	95
Deferred gain amortization on sale-leaseback	(456)	(738)
Share-based compensation	1,312	1,720
Excess tax benefit from share-based compensation	(121)	(368)
Change in operating assets and liabilities:
Accounts receivable	(19,061)	(10,941)
Inventories	(1,044)	(4,711)
Other current assets	(1,232)	302
Prepaid income tax	5,697	1,924
Other noncurrent assets	99	(432)
Accounts payable - trade	9,163	549
Deferred revenue	3,050	(9,149)
Accrued payroll and employee benefits	(2,089)	(887)
Other current liabilities	21,200	10,552
Other liabilities	(463)	(840)
Net Cash Provided by Continuing Operating Activities	24,626	10,663
Net Cash Used by Discontinued Operations	(599)	(632)
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from the sale of property, plant and equipment	17	51
Capital expenditures on property, plant and equipment	(6,342)	(7,974)
Acquisitions		(8,952)
Capital contributions to equity method investment		(625)
Net Cash Used by Continuing Investing Activities	(6,325)	(17,500)
Net Cash Provided/(Used) by Discontinued Operations	10,548	(133)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of other long-term debt	(2,040)	(2,017)
Proceeds from exercise of stock options and stock awards	73	123
Treasury stock acquisitions		(6,480)
Cash dividends on common stock paid to shareholders	(772)	(767)
Excess tax benefit from share-based compensation	121	368
Net Cash Used by Financing Activities	(2,618)	(8,773)
Effect of exchange rate changes on cash and cash equivalents	1,299	(1,290)
Net Increase/(Decrease) in Cash and Cash Equivalents	26,931	(17,665)
Cash and Cash Equivalents at Beginning of Period	73,727	74,800
Cash and Cash Equivalents at End of Period	100,658	57,135
Supplemental Disclosure of Cash Flow Information:
Interest Paid	301	360
Income Taxes Paid	$ 10,696	$ 6,314