Equity (Earnings Per Share) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Numerator:
Income (loss) from continuing operations for purposes of calculating earnings per share	$ 104,093	$ 101,547	$ 115,111
Income (loss) from discontinued operations, net of taxes	$ (1,265)	$ (4,252)	$ (5,545)
Denominator:
Weighted average shares outstanding-Basic (in shares)	47,740,167	47,912,135	50,823,063
Effect of dilutive securities:
Stock options and contingently issued restricted stock (in shares)	749,155	494,185	495,179
Weighted average shares outstanding-Diluted (in shares)	48,489,322	48,406,320	51,318,242
Basic earnings (loss) per share from continuing operations attributable to common shareowners (in dollars per share)	$ 2.18	$ 2.12	$ 2.26
Basic earnings (loss) per share from discontinued operations attributable to common shareowners (in dollars per share)	$ (0.03)	$ (0.09)	$ (0.11)
Diluted earnings (loss) per share from continuing operations attributable to common shareowners (in dollars per share)	$ 2.15	$ 2.10	$ 2.24
Diluted earnings (loss) per share from discontinued operations attributable to common shareowners (in dollars per share)	$ (0.03)	$ (0.09)	$ (0.11)
Stock options
Antidilutive securities excluded from computation of earnings per share amount
Antidilutive securities excluded from computation of earnings per share amount (in shares)	2,288,926	4,590,925	4,249,564
Effect of dilutive securities:
Weighted average shares outstanding-Diluted (in shares)	1,096,550	934,505	703,011