RESTRUCTURING (Details) (USD $)	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Restructuring Cost and Reserve
Restructuring (income)/expense	$ 3,719,000	$ 221,000	$ 1,587,000
Restructuring reserves	0	100,000
Employee severance
Restructuring Cost and Reserve
Restructuring (income)/expense	1,100,000
Equipment relocation
Restructuring Cost and Reserve
Restructuring (income)/expense	100,000
Asset write-off
Restructuring Cost and Reserve
Restructuring (income)/expense	1,400,000
Other
Restructuring Cost and Reserve
Restructuring (income)/expense	1,100,000
Water Systems
Restructuring Cost and Reserve
Restructuring (income)/expense	3,200,000
Water Systems | Employee severance
Restructuring Cost and Reserve
Restructuring (income)/expense	600,000
Water Systems | Equipment relocation
Restructuring Cost and Reserve
Restructuring (income)/expense	100,000
Water Systems | Asset write-off
Restructuring Cost and Reserve
Restructuring (income)/expense	1,400,000
Water Systems | Other
Restructuring Cost and Reserve
Restructuring (income)/expense	1,100,000
Water Systems | Continued manufacturing realignments
Restructuring Cost and Reserve
Restructuring (income)/expense	700,000
Fueling Systems
Restructuring Cost and Reserve
Restructuring (income)/expense	500,000
Fueling Systems | Employee severance
Restructuring Cost and Reserve
Restructuring (income)/expense	500,000
Fueling Systems | Equipment relocation
Restructuring Cost and Reserve
Restructuring (income)/expense	0
Fueling Systems | Asset write-off
Restructuring Cost and Reserve
Restructuring (income)/expense	0
Fueling Systems | Other
Restructuring Cost and Reserve
Restructuring (income)/expense	0
Fueling Systems | Flex-ing Inc.
Restructuring Cost and Reserve
Restructuring (income)/expense	600,000
Other
Restructuring Cost and Reserve
Restructuring (income)/expense	0
Other | Employee severance
Restructuring Cost and Reserve
Restructuring (income)/expense	0
Other | Equipment relocation
Restructuring Cost and Reserve
Restructuring (income)/expense	0
Other | Asset write-off
Restructuring Cost and Reserve
Restructuring (income)/expense	0
Other | Other
Restructuring Cost and Reserve
Restructuring (income)/expense	0
Oklahoma City facility disposal | Asset write-off
Restructuring Cost and Reserve
Restructuring (income)/expense	1,300,000
Corporate Headquarters relocation | Other
Restructuring Cost and Reserve
Restructuring (income)/expense	$ 1,100,000