Shareholders' Equity Stock Based Compensation Plans (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 28, 2013 stock_plan		Dec. 29, 2012		Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock plans approved by shareholders	3
Number of shares available for grant	5,956,000
Share-based compensation expense	$ 4,232	[1]	$ 10,306	[1]	$ 4,971
Income tax benefit	1,447		3,576		1,710
Total stock-based compensation expense, net of tax	2,785		6,730		3,261
CEO transition costs	(534)		5,595		0
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	2,698		3,688		2,721
Time-Based Stock Awards And Performance Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 1,534		$ 6,618		$ 2,250

[1] Includes $(0.5) million and $5.6 million of CEO transition (benefit) costs in 2013 and 2012, respectively. See CEO Transition Costs on page 57.