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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest.

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The amount of net income (loss) from continuing operations per each basic and diluted share of common stock or unit when the per share amount is the same for both basic and diluted shares.

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Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Per basic and diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation, when the per share amount is the same.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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Loss Per Share (Details) $ / shares in Units, $ in Thousands			3 Months Ended				6 Months Ended
	Apr. 22, 2019	Apr. 18, 2019 shares	Aug. 31, 2019 USD ($) $ / shares shares	Jun. 01, 2019 USD ($) shares	Sep. 01, 2018 USD ($) $ / shares shares	Jun. 02, 2018 USD ($)	Aug. 31, 2019 USD ($) $ / shares shares	Sep. 01, 2018 USD ($) $ / shares shares	Apr. 17, 2019 shares	Mar. 02, 2019 shares
Numerator:
Net loss from continuing operations \| $			$ (78,705)		$ (352,348)		$ (178,044)	$ (394,075)
Net (loss) income from discontinued operations \| $			(574)		(6,792)		(894)	249,351
Net loss \| $			$ (79,279)	$ (99,659)	$ (359,140)	$ 214,416	$ (178,938)	$ (144,724)
Denominator:
Basic weighted average shares			53,041,000		52,823,000		53,084,000	52,771,000
Diluted weighted average shares			53,041,000		52,823,000		53,084,000	52,771,000
Continuing operations \| $ / shares			$ (1.48)		$ (6.67)		$ (3.35)	$ (7.47)
Discontinued operations \| $ / shares			(0.01)		(0.13)		(0.02)	4.73
Net basic and diluted loss per share \| $ / shares			$ (1.49)		$ (6.80)		$ (3.37)	$ (2.74)
Reverse stock split
Reverse stock split ratio	0.05	0.05
Common stock, shares authorized		75,000	75,000,000				75,000,000		1,500,000	75,000,000
Stock options
Antidilutive securities excluded from computation of income per share
Shares excluded from the computation of diluted income per share				1,367,000	1,258,000
Restricted shares
Antidilutive securities excluded from computation of income per share
Shares excluded from the computation of diluted income per share			1,628,000		390,000		1,628,000	390,000