Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash Flows From Operating Activities
Net income (loss)	$ 24,505	$ (42,834)	$ (683)
Net loss from discontinued operations	0	0	7,678
Items not affecting use of cash
Depreciation	31,245	30,628	33,132
Impairment charges and asset write-offs	1,249	72,014	5,462
Amortization of other intangible assets	2,969	2,922	3,136
Non-cash stock compensation	2,595	2,326	2,660
Provision for loss on accounts receivable	915	(1,455)	(2,245)
Deferred taxes	(184)	(13,285)	(1,405)
Other long-term liabilities	4,251	151	(10)
Gain on sale of property, plant and equipment	(875)	(733)	(3,621)
Other	50	0	0
Cash flow provided by (used for) working capital
Accounts receivable	(8,665)	(9,994)	9,630
Inventories	455	4,958	10,872
Prepaid expenses	2,662	548	(3,962)
Accounts payable and accrued expenses	3,000	392	12,511
Net cash provided by operating activities of continuing operations	64,172	45,638	73,155
Net cash used for operating activities of discontinued operations	0	0	(817)
Net cash provided by operating activities	64,172	45,638	72,338
Cash Flows From Investing Activities
Additions to property, plant and equipment	(21,930)	(20,533)	(15,995)
Acquisition of business, net of cash acquired	(1,100)	(411)	(1,177)
Proceeds from sale of property, plant and equipment	1,089	5,213	8,401
Other	(96)	358	737
Net cash used for investing activities of continuing operations	(22,037)	(15,373)	(8,034)
Net cash provided by investing activities of discontinued operations	0	0	10,036
Net cash (used for) provided by investing activities	(22,037)	(15,373)	2,002
Cash Flows From Financing Activities
Repayment of long term debt	(305)	(65,380)	(6,950)
Net (repayment) borrowing of credit facility	(9,383)	44,900	(62,160)
Cash dividends paid	(9,523)	(9,209)	(8,436)
Proceeds from issuance of common stock	751	138	271
Repurchase of common stock	(20,946)	0	0
Deferred financing costs	0	(1,169)	0
Net cash used for financing activities of continuing operations	(39,406)	(30,720)	(77,275)
Net cash used for financing activities of discontinued operations	0	0	(4,000)
Net cash used for financing activities	(39,406)	(30,720)	(81,275)
Foreign Exchange Rate Effect on Cash	(633)	432	1,246
Net increase (decrease) in cash	2,096	(23)	(5,689)
Cash at January 1	4,705	4,728	10,417
Cash at December 31	6,801	4,705	4,728
Cash paid during the year for
Interest	4,129	6,920	8,317
Income taxes	$ 11,168	$ 9,468	$ 5,896