Effective Income Tax Rate Reconciliation, Change In Reporting Entity, Amount

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Effective Income Tax Rate Reconciliation, Contingent Consideration Liability Adjustments, Amount

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Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act of 2017, Amount

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Effective Income Tax Rate Reconciliation, Taxes Related To Limited Liability Companies

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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INCOME TAXES - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Millions	3 Months Ended						4 Months Ended		12 Months Ended
	Feb. 23, 2019	Dec. 01, 2018	Sep. 08, 2018	Feb. 24, 2018	Dec. 02, 2017	Sep. 09, 2017	Jun. 16, 2018	Jun. 17, 2017	Feb. 23, 2019	Feb. 24, 2018	Feb. 25, 2017
Income Tax Disclosure [Abstract]
Income tax expense (benefit) at federal statutory rate									$ 11.0	$ (301.5)	$ (162.3)
State income taxes, net of federal benefit									0.7	(39.8)	(20.2)
Change in valuation allowance									(3.3)	(218.0)	107.1
Tax Cuts and Jobs Act									(56.9)	(430.4)	0.0
Unrecognized tax benefits									(16.2)	(36.5)	(18.7)
Member loss									0.0	83.1	16.6
Charitable donations									(4.4)	0.0	(11.1)
Tax Credits									(10.8)	(9.1)	(17.3)
Indemnification asset									0.0	0.0	5.1
CVR liability adjustment									0.0	(20.3)	7.5
Reorganization of limited liability companies									0.0	46.7	0.0
Nondeductible equity-based compensation expense									3.8	1.6	4.2
Other									(2.8)	(39.6)	(1.2)
Income tax benefit	$ 1.4	$ (65.4)	$ (11.9)	$ (373.0)	$ (523.5)	$ (67.7)	$ (3.0)	$ 0.4	$ (78.9)	$ (963.8)	$ (90.3)