Long-Term Debt and Capital Lease Obligations (Long-Term Debt) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 28, 2013	Dec. 29, 2012
Debt Instrument
Principal	$ 639,739
Total debt	639,739	666,448
Less: current portion of long-term debt	(15,987)	(139,373)
Long-term debt	623,752	527,075
Interest rate on debt (as a percent)	2.25%
2.25% Senior convertible debentures
Debt Instrument
Principal	0	349,995
Unamortized debt discount	0	(6,726)
Total debt	0	343,269
Interest rate on debt (as a percent)	2.25%
Term loan facilities
Debt Instrument
Total debt	414,750	290,947
Revolving credit facility
Debt Instrument
Total debt	224,752	32,000
Other long-term debt represents secured and unsecured promissory notes, interest rates ranging from 0% to 0.5%, 0% to 0.5% at both March 31, 2012 and December 31, 2011, respectively, maturing between 2012 and 2013
Debt Instrument
Total debt	$ 237	$ 232