SUMMARY OF SIGNIFICANT ACCOUNTNG POLICIES (Detail) (USD $)	12 Months Ended
	Dec. 31, 2011 Y wholenumber	Dec. 31, 2010	Dec. 31, 2009
Summary of Significant Accounting Policies [Abstract]
Number Manufacturing Facilities	64
Number Metal Treatment Service Facilities	64
Changes In Contract Estimates Leading Increase In Earnings From Continuing Operations	$ 9,700,000
Property, Plant and Equipment [Line Items]
Finite Lived Intangible Assets Useful Life Minimum	1
Finite Lived Intangible Assets Useful Life Maximum	20
Impairment of Long-Lived Assets Held-for-use	200,000	1,500,000	1,100,000
Other Current Assets Capitalized Costs	300,000	700,000
Accrual For Environmental Loss Contingencies Current Value Of Anticipated Remediation Costs	40.80%
Treasury Stock Acquired, Repurchase Authorization	3,000,000
Treasury Stock Acquired Repurchase Authorization Previous Plan	690,000
Treasury Stock Acquired Repurchase Authorization Approval Date	Sep. 28, 2011
Treasury Stock Acquired Repurchase Authorization Purchase Limit	100,000,000
Treasury Stock, Shares, Acquired	261,003
Repurchases of company stock	8,178,000
Foreign Currency Transaction Gain (Loss), Realized	(800,000)	(4,200,000)	(4,700,000)
Gain (Loss) on Foreign Currency Derivatives Recorded in Earnings, Net	$ (700,000)	$ 3,100,000	$ 2,500,000
Building [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life, Minimum	5
Property, Plant and Equipment, Useful Life, Maximum	40
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life, Minimum	3
Property, Plant and Equipment, Useful Life, Maximum	15