RESTRUCTURING (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013	Jul. 01, 2014
Restructuring Cost and Reserve
Restructuring expense	$ 2,997	$ 16,611	$ 3,719
Restructuring reserves	0	$ 13,100
Employee severance
Restructuring Cost and Reserve
Restructuring expense	600
Equipment relocation
Restructuring Cost and Reserve
Restructuring expense	600
Asset write-off
Restructuring Cost and Reserve
Restructuring expense	100
Pension
Restructuring Cost and Reserve
Restructuring expense	600
Other
Restructuring Cost and Reserve
Restructuring expense	1,100
Water Systems
Restructuring Cost and Reserve
Restructuring expense	2,700
Water Systems | Employee severance
Restructuring Cost and Reserve
Restructuring expense	300
Water Systems | Equipment relocation
Restructuring Cost and Reserve
Restructuring expense	600
Water Systems | Asset write-off
Restructuring Cost and Reserve
Restructuring expense	100
Water Systems | Pension
Restructuring Cost and Reserve
Restructuring expense	600
Water Systems | Other
Restructuring Cost and Reserve
Restructuring expense	1,100
Fueling Systems
Restructuring Cost and Reserve
Restructuring expense	300
Fueling Systems | Employee severance
Restructuring Cost and Reserve
Restructuring expense	300
Fueling Systems | Equipment relocation
Restructuring Cost and Reserve
Restructuring expense	0
Fueling Systems | Asset write-off
Restructuring Cost and Reserve
Restructuring expense	0
Fueling Systems | Pension
Restructuring Cost and Reserve
Restructuring expense	0
Fueling Systems | Other
Restructuring Cost and Reserve
Restructuring expense	0
Other
Restructuring Cost and Reserve
Restructuring expense	0
Other | Employee severance
Restructuring Cost and Reserve
Restructuring expense	0
Other | Equipment relocation
Restructuring Cost and Reserve
Restructuring expense	0
Other | Asset write-off
Restructuring Cost and Reserve
Restructuring expense	0
Other | Pension
Restructuring Cost and Reserve
Restructuring expense	0
Other | Other
Restructuring Cost and Reserve
Restructuring expense	$ 0
Wittlich Facility Closure
Restructuring Cost and Reserve
Restructuring and related cost, expected cost				$ 19,400