RESTRUCTURING (Details) (USD $)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Restructuring Cost and Reserve
Restructuring (income)/expense	$ 221,000	$ 1,587,000	$ 5,334,000
Restructuring reserves	100,000	100,000
Water Systems
Restructuring Cost and Reserve
Restructuring (income)/expense		1,600,000	5,300,000
Phase IV
Restructuring Cost and Reserve
Restructuring (income)/expense	200,000
Phase IV | Restructuring Costs | Minimum
Restructuring Cost and Reserve
Restructuring and related cost, expected cost	2,600,000
Percentage of non-cash charges related to restructuring (as a percent)	50.00%
Phase IV | Restructuring Costs | Maximum
Restructuring Cost and Reserve
Restructuring and related cost, expected cost	5,200,000
Percentage of non-cash charges related to restructuring (as a percent)	60.00%
Phase IV | Facility closing | Minimum
Restructuring Cost and Reserve
Restructuring and related cost, expected cost	1,200,000
Phase IV | Facility closing | Maximum
Restructuring Cost and Reserve
Restructuring and related cost, expected cost	3,500,000
Phase IV | Equipment relocation
Restructuring Cost and Reserve
Restructuring (income)/expense	100,000
Phase IV | Asset write-off
Restructuring Cost and Reserve
Restructuring (income)/expense	300,000
Phase IV | Asset sale
Restructuring Cost and Reserve
Restructuring (income)/expense	(400,000)
Phase IV | Other
Restructuring Cost and Reserve
Restructuring (income)/expense	200,000
Phase IV | Man Hours Transfer
Restructuring Cost and Reserve
Manufacturing activity, man hours	260,000
Phase IV | Water Systems
Restructuring Cost and Reserve
Restructuring (income)/expense	200,000
Phase IV | Water Systems | Equipment relocation
Restructuring Cost and Reserve
Restructuring (income)/expense	100,000
Phase IV | Water Systems | Asset write-off
Restructuring Cost and Reserve
Restructuring (income)/expense	300,000
Phase IV | Water Systems | Asset sale
Restructuring Cost and Reserve
Restructuring (income)/expense	(400,000)
Phase IV | Water Systems | Other
Restructuring Cost and Reserve
Restructuring (income)/expense	200,000
Phase IV | Fueling Systems
Restructuring Cost and Reserve
Restructuring (income)/expense	0
Phase IV | Fueling Systems | Equipment relocation
Restructuring Cost and Reserve
Restructuring (income)/expense	0
Phase IV | Fueling Systems | Asset write-off
Restructuring Cost and Reserve
Restructuring (income)/expense	0
Phase IV | Fueling Systems | Asset sale
Restructuring Cost and Reserve
Restructuring (income)/expense	0
Phase IV | Fueling Systems | Other
Restructuring Cost and Reserve
Restructuring (income)/expense	0
Phase IV | Other
Restructuring Cost and Reserve
Restructuring (income)/expense	0
Phase IV | Other | Equipment relocation
Restructuring Cost and Reserve
Restructuring (income)/expense	0
Phase IV | Other | Asset write-off
Restructuring Cost and Reserve
Restructuring (income)/expense	0
Phase IV | Other | Asset sale
Restructuring Cost and Reserve
Restructuring (income)/expense	0
Phase IV | Other | Other
Restructuring Cost and Reserve
Restructuring (income)/expense	$ 0