Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Operating activities:
Net income	$ 64,715	$ 53,278	$ 39,001
Adjustments to reconcile net income to net cash from operating activites:
Depreciation and amortization	58,904	52,770	51,487
Amortization of convertible debt discount	2,158	5,727	5,920
(Gain) loss on disposition of property, plant and equipment	(379)	266	1,177
Gain on repurchase of debt	0	0	(3,773)
Stock compensation expense	8,319	7,655	4,208
Withholding taxes paid on stock issuances	(1,124)	(440)	(622)
Loss on the sale of businesses	26,128	0	0
Changes in assets and liabilities, net of the effects of acquisitions/divestitures:
Accounts receivable	(24,707)	(35,891)	17,531
Inventories	(12,384)	(24,006)	53,523
Prepaid expenses and other current assets	59	(3,139)	7,056
Accounts payable	615	12,466	4,149
Accrued liabilities	11,226	11,456	(10,151)
Deferred income taxes	5,386	(1,566)	(7,498)
Long-term retirement benefits	(18,367)	(12,135)	(19,959)
Other	475	(681)	1,434
Net cash provided by operating activities	121,024	65,760	143,483
Investing activities:
Proceeds from disposition of property, plant, and equipment	3,620	1,498	6,808
Proceeds from the sale of businesses, net of cash sold	22,492	0	0
Investment in restricted cash	(11,664)	0	0
Capital expenditures	(37,082)	(28,759)	(30,502)
Business acquisitions, net of cash acquired	(3,495)	0	0
Other	(4,483)	(3,038)	(2,386)
Net cash used by investing activities	(30,612)	(30,299)	(26,080)
Financing activities:
Net change in other borrowings	7,168	347	(4,504)
Payments on long-term debt	(411,661)	(359,542)	(226,906)
Proceeds from the issuance of long-term debt	392,390	359,917	129,600
Premium paid on convertible debt redemption	(9,803)	0	0
Proceeds from the issuance of common stock	28,579	5,746	6,687
Common stock repurchases	(34,066)	(28,100)	(314)
Dividends paid	(18,629)	(17,461)	(25,600)
Excess tax benefit on stock awards	8,056	0	0
Other	(2,229)	(207)	(832)
Net cash used by financing activities	(40,195)	(39,300)	(121,869)
Effect of exchange rate changes on cash flows	(1,162)	(138)	935
Increase (decrease) in cash and cash equivalents	49,055	(3,977)	(3,531)
Cash and cash equivalents at beginning of year	13,450	17,427	20,958
Cash and cash equivalents at end of year	$ 62,505	$ 13,450	$ 17,427