Fair Value Measurements Fair Value Measurements - Debt Information (Details) (USD $) In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012	Aug. 10, 2012
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of senior unsecured notes issued	$ 619,200	$ 633,000
Fair Value, Measurements, Recurring [Member] | Reported Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of senior unsecured notes issued	598,454	598,275
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of senior unsecured notes issued	619,200	633,000
Senior unsecured notes, 5.25% due 2017 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, maturity date	2017	2017
Debt instrument, interest rate	5.25%	5.25%
Senior unsecured notes, 5.25% due 2017 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of senior unsecured notes issued	318,000	326,000
Senior unsecured notes, 5.25% due 2017 [Member] | Fair Value, Measurements, Recurring [Member] | Reported Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of senior unsecured notes issued	300,000	300,000
Senior unsecured notes, 5.25% due 2017 [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of senior unsecured notes issued	318,000	326,000
Senior unsecured notes, 5.00% due 2022 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, maturity date	2022	2022
Debt instrument, interest rate	5.00%	5.00%	5.00%
Senior unsecured notes, 5.00% due 2022 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of senior unsecured notes issued	301,200	307,000
Senior unsecured notes, 5.00% due 2022 [Member] | Fair Value, Measurements, Recurring [Member] | Reported Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of senior unsecured notes issued	298,454	298,275
Senior unsecured notes, 5.00% due 2022 [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of senior unsecured notes issued	$ 301,200	$ 307,000