Restructuring - Summary of Restructuring Charges (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Jun. 29, 2013	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]
Restructuring	$ 2.0	$ 2.0
Restructuring, Total	2.0	2.0
North America [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring		1.0
Restructuring, Total		1.0
United Kingdom [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring		0.7
Restructuring, Total		0.7
All Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring		0.3
Restructuring, Total		$ 0.3