Revenue, Receivables and Contract Assets and Liabilities (Details 4) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Dec. 01, 2018	Dec. 01, 2018
Revenue from Contract with Customer [Abstract]
Revenue recognized related to contract liabilities at March 4, 2018		$ 10.4
Revenue related to performance obligations satisfied in previous periods due to changes in contract estimates	$ 1.5	$ 3.8

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045

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