RESTRUCTURING ACTIVITIES (Detail) (USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012
Restructuring Cost And Reserve [Line Items]
Restructuring And Related Cost Cost Incurred To Date	$ 1,699,000	$ 12,732,000
Cost Of Sales [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring And Related Cost Cost Incurred To Date	1,002,000	4,817,000
Selling Expense [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring And Related Cost Cost Incurred To Date	0	312,000
General And Administrative Expense [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring And Related Cost Cost Incurred To Date	697,000	7,603,000
Flow Control [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring And Related Cost Cost Incurred To Date	530,000	3,264,000
Restructuring and Related Cost, Expected Cost		1,000,000
Flow Control [Member] | Cost Of Sales [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring And Related Cost Cost Incurred To Date	18,000	1,303,000
Flow Control [Member] | Selling Expense [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring And Related Cost Cost Incurred To Date	0	312,000
Flow Control [Member] | General And Administrative Expense [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring And Related Cost Cost Incurred To Date	512,000	1,649,000
Motion Control [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring And Related Cost Cost Incurred To Date	368,000	3,426,000
Restructuring and Related Cost, Expected Cost		1,000,000
Motion Control [Member] | Cost Of Sales [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring And Related Cost Cost Incurred To Date	215,000	2,351,000
Motion Control [Member] | Selling Expense [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring And Related Cost Cost Incurred To Date	0	0
Motion Control [Member] | General And Administrative Expense [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring And Related Cost Cost Incurred To Date	153,000	1,075,000
Metal Treatment [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring And Related Cost Cost Incurred To Date	801,000	6,042,000
Restructuring and Related Cost, Expected Cost		6,400,000
Metal Treatment [Member] | Cost Of Sales [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring And Related Cost Cost Incurred To Date	769,000	1,163,000
Metal Treatment [Member] | Selling Expense [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring And Related Cost Cost Incurred To Date	0	0
Metal Treatment [Member] | General And Administrative Expense [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring And Related Cost Cost Incurred To Date	$ 32,000	$ 4,879,000