Aggregate Future Payments under Purchase commitments based on Pricing and Volumes (Detail) (Purchase Commitment, USD $) In Thousands, unless otherwise specified	Dec. 29, 2012
Significant Purchase and Supply Commitment [Line Items]
2013	$ 601,130
2014	267,034
2015	97,585
2016	26,384
2017	24,673
Thereafter	26,672
Total	1,043,478
Segment, Discontinued Operations
Significant Purchase and Supply Commitment [Line Items]
2013	42,007
2014	12,887
2015	12,022
2016	11,412
2017	10,870
Thereafter	12,869
Total	102,067
Segment, Continuing Operations
Significant Purchase and Supply Commitment [Line Items]
2013	559,123
2014	254,147
2015	85,563
2016	14,972
2017	13,803
Thereafter	13,803
Total	$ 941,411