Fair Value Measurements - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011	Dec. 29, 2012 Fair Value, Inputs, Level 3 Trade Accounts Receivable	Jan. 01, 2011 Fair Value, Inputs, Level 3 Trade Accounts Receivable	Jan. 02, 2010 Fair Value, Inputs, Level 3 Trade Accounts Receivable
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Credit Valuation adjustments	$ 0.5	$ 10.5
Long-term trade receivables written down			$ 1.0	$ 11.4	$ 4.4