Summary of Restructuring and Impairment Costs (Detail) - USD ($) $ in Millions	3 Months Ended
	Jun. 26, 2016	Mar. 27, 2016
Restructuring Cost and Reserve [Line Items]
Accrual Balance, Beginning Balance	$ 1.7	$ 7.5
Restructuring Charges	0.2	(11.5)
Other Charges	0.5	1.0
Reserve Release	(0.1)	(0.4)
Cash (Paid) Received	(1.2)	8.0
Net Book Value Assets Disposed	(0.3)	(2.9)
Accrual Balance, Ending Balance	0.8	1.7
2014 Infrastructure Realignment Program | Employee Separation Costs
Restructuring Cost and Reserve [Line Items]
Accrual Balance, Beginning Balance	1.0	3.3
Reserve Release		(0.1)
Cash (Paid) Received	(0.5)	(2.2)
Accrual Balance, Ending Balance	0.5	1.0
2014 Infrastructure Realignment Program | Asset Impairments Costs
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	(0.2)	(12.5)
Cash (Paid) Received	0.5	15.4
Net Book Value Assets Disposed	(0.3)	(2.9)
2014 Infrastructure Realignment Program | Factory Closure Costs
Restructuring Cost and Reserve [Line Items]
Accrual Balance, Beginning Balance		1.2
Restructuring Charges	0.4	0.9
Cash (Paid) Received	(0.4)	(2.1)
2014 Infrastructure Realignment Program | Qualification Costs
Restructuring Cost and Reserve [Line Items]
Other Charges	0.5	1.0
Cash (Paid) Received	(0.5)	(1.0)
2015 Operating Expense Reduction Program | Employee Separation Costs
Restructuring Cost and Reserve [Line Items]
Accrual Balance, Beginning Balance	0.7	3.0
Restructuring Charges		0.1
Reserve Release	(0.1)	(0.3)
Cash (Paid) Received	(0.3)	(2.1)
Accrual Balance, Ending Balance	$ 0.3	$ 0.7