Restructuring - Additional Information (Detail) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2016 USD ($) Person	Mar. 28, 2015 USD ($)	Dec. 31, 2015 Person
Restructuring Cost and Reserve [Line Items]
Number of employees | Person	50		3,000
Total restructuring costs	$ 0.7	$ 0.0
Water Quality Systems [Member]
Restructuring Cost and Reserve [Line Items]
Number of employees | Person	10		100
Total restructuring costs	$ 0.5	0.0
Flow & Filtration Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Number of employees | Person	20		200
Total restructuring costs	$ (1.1)	0.0
Technical Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Number of employees | Person	20		200
Total restructuring costs	$ 0.2	0.0
Valves And Controls [Member]
Restructuring Cost and Reserve [Line Items]
Number of employees | Person			2,500
Total restructuring costs	0.2	0.0
Corporate and Other [Member]
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	$ 0.9	$ 0.0