Consolidated Statements of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Operating Activities
Net income	$ 41,404	$ 26,652
Adjustments to reconcile net income to net cash from operating activites:
Depreciation and amortization	28,822	26,082
Amortization of convertible debt discount	1,117	2,805
(Gain) loss on disposition of property, plant and equipment	(607)	422
Stock compensation expense	4,294	3,546
Withholding taxes paid on stock issuances	(664)	(89)
Changes in assets and liabilities:
Accounts receivable	(24,875)	(26,779)
Inventories	(9,822)	(8,674)
Prepaid expenses and other current assets	22	(2,680)
Accounts payable	8,051	12,353
Accrued liabilities	6,305	5,351
Deferred income taxes	1,650	(1,396)
Long-term retirement benefits	(13,762)	(7,389)
Other	(1,593)	2,627
Net cash provided by operating activities	40,342	32,831
Investing activities:
Proceeds from disposition of property, plant, and equipment	2,243	157
Capital expenditures	(19,342)	(15,060)
Other	(4,236)	(1,726)
Net cash used by investing activities	(21,335)	(16,629)
Financing activities:
Net change in other borrowings	(1,363)	(2,565)
Payments on long-term debt	(275,074)	(137,493)
Proceeds from issuance of long-term debt	249,490	131,400
Premium paid on convertible debt redemption	(9,803)	0
Proceeds from issuance of common stock	26,086	3,522
Common stock repurchases	0	(4,059)
Dividends paid	(8,765)	(8,787)
Excess tax benefit on stock awards	3,102	0
Other	(131)	(108)
Net cash used by financing activities	(16,458)	(18,090)
Effect of exchange rate changes on cash flows	578	(1,194)
Increase (decrease) in cash and cash equivalents	3,127	(3,082)
Cash and cash equivalents at beginning of period	13,450	17,427
Cash and cash equivalents at end of period	$ 16,577	$ 14,345