Long-Term Debt and Capital Lease Obligations (Maturities of Long-Term Debt and Capital Lease Obligations) (Detail) (USD $) In Millions, unless otherwise specified	Dec. 28, 2012	Dec. 30, 2011
Debt Instrument [Line Items]
2013	$ 2.8
2014	0.8
2015	0.6
2016	122.0
Total	126.2
Less: Amounts representing interest	0
Total long-term debt and capital lease obligations	126.2	215.5
Less: Current portion	(2.7)	(2.2)
Totals, net of current portion of long-term debt and capital lease obligations	123.5	213.3
Long-term Debt [Member]
Debt Instrument [Line Items]
2013	2.4
2014	0.7
2015	0.5
2016	122.0
Total	125.6
Less: Amounts representing interest	0
Total long-term debt and capital lease obligations	125.6
Less: Current portion	(2.4)
Totals, net of current portion of long-term debt and capital lease obligations	123.2
Capital Leases [Member]
Debt Instrument [Line Items]
2013	0.4
2014	0.1
2015	0.1
2016	0
Total	0.6
Less: Amounts representing interest	0
Total long-term debt and capital lease obligations	0.6
Less: Current portion	(0.3)
Totals, net of current portion of long-term debt and capital lease obligations	$ 0.3