Restructuring and Asset Impairments - Summary of Restructuring Charges (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0.1	$ 0	$ 2.4	$ 2.0
North America [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.1	0	2.3	1.0
United Kingdom [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0	0	0.1	0.7
Mexico [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0	$ 0	$ 0	$ 0.3