ACQUISITIONS - Fiscal 2017 Acquisitions (Details) - USD ($) $ in Millions				12 Months Ended
	Feb. 29, 2020	Sep. 20, 2017	May 31, 2017	Feb. 29, 2020	Feb. 23, 2019	Feb. 24, 2018
Business Acquisition [Line Items]
Net cash paid for acquisitions				$ 0.0	$ 0.0	$ 148.8
Goodwill	$ 1,183.3			$ 1,183.3	$ 1,183.3
Plated
Business Acquisition [Line Items]
Total purchase consideration		$ 219.5
Net cash paid for acquisitions		117.3
Intangible assets		67.1
Goodwill		146.2
Acquisition related costs		6.3
Deferred consideration	$ 25.0
Plated | Fair value | Deferred consideration
Business Acquisition [Line Items]
Deferred consideration to be paid over three years		42.1
Plated | Fair value | Earn-out
Business Acquisition [Line Items]
Deferred consideration to be paid over three years		$ 60.1
MedCart
Business Acquisition [Line Items]
Total purchase consideration			$ 34.5
Goodwill expected to be deductible for tax purposes			$ 11.6