INTANGIBLE ASSETS AND GOODWILL (Details) GOODWILL (USD $)	9 Months Ended
	Oct. 01, 2011
Change in the Carrying Amount of Goodwill by Reporting Segment
Goodwill, Beginning Balance	$ 165,193,000
Acquisitions	5,900,000
Adjustments to prior year acquisitions	700,000
Foreign currency translation	(1,200,000)
Goodwill, Ending Balance	170,594,000
Additional payments of certain product sales, percentage	5.00%
Water Systems
Change in the Carrying Amount of Goodwill by Reporting Segment
Goodwill, Beginning Balance	107,000,000
Acquisitions	5,900,000
Adjustments to prior year acquisitions	0
Foreign currency translation	(1,300,000)
Goodwill, Ending Balance	111,600,000
Fueling Systems
Change in the Carrying Amount of Goodwill by Reporting Segment
Goodwill, Beginning Balance	58,200,000
Acquisitions	0
Adjustments to prior year acquisitions	700,000
Foreign currency translation	100,000
Goodwill, Ending Balance	$ 59,000,000