Stock Repurchase Program (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 26, 2019	Mar. 27, 2018	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
Amount remaining under authorized stock repurchase program	$ 69.9

The cash outflow to reacquire common stock during the period.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

Name:	us-gaap_PaymentsForRepurchaseOfCommonStock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration