Revenue, Receivables and Contract Assets and Liabilities (Details 4) - USD ($) $ in Thousands	12 Months Ended
Feb. 27, 2021	Feb. 29, 2020
Revenue from Contract with Customer [Abstract]
Revenue recognized related to contract liabilities from prior year-end	$ 16,341	$ 23,221
Revenue recognized related to prior satisfaction of performance obligations	$ 19,705	$ 15,641

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://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130549-203045

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