Accrued Liabilities (Schedule Of Accrued Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Accrued Liabilities [Abstract]
Salaries, wages and related fringe benefits	$ 59,080	$ 50,540
Taxes	34,891	25,367
Advance payments on sales contracts	40,689	39,026
Product warranty	22,939	19,100	19,312	19,141
Product liability, and medical and workers' compensation claims	6,238	5,686
Restructuring	4,439	5,802
Other	45,272	33,520
Total accrued liabilities	$ 213,548	$ 179,041