Stock-Based Compensation (Narrative) (Details) (USD $)	12 Months Ended						0 Months Ended	12 Months Ended							12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011	Dec. 28, 2013 Restricted Stock Units (RSUs) [Member]	Dec. 29, 2012 Restricted Stock Units (RSUs) [Member]	Jan. 01, 2011 Restricted Stock Units (RSUs) [Member]	May 01, 2013 Performance Shares [Member]	Dec. 29, 2012 Performance Shares [Member]	Dec. 31, 2011 Performance Shares [Member]	Dec. 28, 2013 Stock Options [Member]	Dec. 28, 2013 2007 Long-term Equity Incentive Plan [Member]	Dec. 29, 2012 2007 Long-term Equity Incentive Plan [Member]	Dec. 31, 2011 2007 Long-term Equity Incentive Plan [Member]	May 31, 2008 2007 Long-term Equity Incentive Plan [Member]	Dec. 28, 2013 2007 Long-term Equity Incentive Plan [Member] Restricted Stock Units (RSUs) [Member]	Dec. 29, 2012 2007 Long-term Equity Incentive Plan [Member] Restricted Stock Units (RSUs) [Member]	Dec. 31, 2011 2007 Long-term Equity Incentive Plan [Member] Restricted Stock Units (RSUs) [Member]
Narrative Disclosures [Abstract]
Number of shares authorized for issuance (shares)														4,500,000
Number of additional shares authorized for issuance (shares)											1,040,000
Maximum remaining contractual term (years)										6 years
Vesting period (years)				4 years						4 years
Stock-based compensation provision	$ 3,739,000	$ 5,333,000	$ 8,716,000
Stock compensation, tax benefit											700,000	1,200,000	1,500,000
Unrecognized share based compensation expense	2,900,000
Unrecognized share based compensation costs, amortization period (years)	1 year 6 months 25 days
RSU fair value															$ 1,600,000	$ 2,000,000	$ 3,700,000
Shares granted (shares)				549,500	136,840	806,084	730,500	0	0