CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Nov. 30, 2019	Aug. 31, 2019	Jun. 01, 2019	Dec. 01, 2018	Sep. 01, 2018	Jun. 02, 2018	Nov. 30, 2019	Dec. 01, 2018
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
Changes in defined benefit plans, tax expense	$ 0	$ 0	$ 0	$ 144	$ 144	$ 144	$ 0	$ 432

Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569643-111683

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration