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Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
	Feb. 28, 2019	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016	Feb. 13, 2019
Subsequent Events
Common stock quarterly cash dividend declared (in dollars per share)		$ 0.71	$ 0.59	$ 0.14
Subsequent Events
Subsequent Events
Additional number of shares authorized to repurchase					$ 20.0
Common stock quarterly cash dividend declared (in dollars per share)	$ 0.20

X

- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

+ Details

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X

- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

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Period Type:	instant

X

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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X

- Details

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