Derivative Instruments Located on Consolidated Balance Sheet (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 9	$ 61
Derivative Liabilities	4,060	9,121
Interest Rate Contracts | Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	867	2,639
Interest Rate Contracts | Other LongTerm Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities		765
Commodity Contract | Other Long Term Assets
Derivatives, Fair Value [Line Items]
Derivative Assets	9	61
Commodity Contract | Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	3,047	5,439
Commodity Contract | Other LongTerm Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ 146	$ 278