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Stock Repurchase Program (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 26, 2018	Jun. 27, 2017	Jun. 26, 2018	Jun. 27, 2017	May 22, 2014
Stockholders' Equity
Repurchase of common stock authorized by board of directors					$ 100.0
Payments to repurchase common stock	$ 0.0	$ 0.0	$ 0.0	$ 0.0
Amount remaining under authorized stock repurchase program	$ 69.9		$ 69.9

X

- Definition

The cash outflow to reacquire common stock during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585

+ Details

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X

- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

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X

- Definition

Amount remaining of a stock repurchase plan authorized.

+ References

No definition available.

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- References

No definition available.

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