Stock-Based Compensation (Restricted Stock Awards) (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 26, 2014 Dividend Equivalent Units (DEUs) [Member]	Jun. 27, 2014 Dividend Equivalent Units (DEUs) [Member]	Mar. 28, 2014 Dividend Equivalent Units (DEUs) [Member]	Sep. 26, 2014 Restricted Stock Units (RSUs) [Member]	Sep. 27, 2013 Restricted Stock Units (RSUs) [Member]	Sep. 26, 2014 Restricted Stock Units (RSUs) [Member]	Sep. 27, 2013 Restricted Stock Units (RSUs) [Member]	Sep. 26, 2014 Performance Shares [Member]	Sep. 27, 2013 Performance Shares [Member]	Sep. 26, 2014 Restricted Stock Units (RSUs) [Member]	Sep. 26, 2014 Restricted Stock [Member]	Sep. 27, 2013 Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock or Unit Expense				$ 3.0	$ 0.7	$ 5.0	$ 1.8
Number of Share-based Payment Award Nonvested	2,668	1,893	2,014					165,000	175,000	311,000	26,117	26,201
Price Per Share	$ 32.33	$ 28.97	$ 27.12					$ 25.52	$ 26.52	$ 29.99	$ 28.15	$ 26.72
Compensation Expense											$ 0.7	$ 0.7

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.F)

-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

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- Definition

The noncash expense that represents the cost of restricted stock or unit distributed to employees as compensation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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