Summary Of Significant Accounting Policies (Narrative) (Details) $ in Millions		1 Months Ended	3 Months Ended	12 Months Ended
	May 27, 2019 USD ($)	Mar. 31, 2020 USD ($)	May 31, 2020 USD ($) restaurant	May 31, 2020 USD ($) restaurant reporting_unit	May 26, 2019 USD ($)	May 27, 2018 USD ($)	Apr. 06, 2020 USD ($)
Summary of Significant Accounting Policies [Line Items]
Emergency pay program		$ 75.0
Health and welfare insurance premiums		4.1
Long-term debt			$ 939.1	$ 939.1	$ 939.1
Net proceeds from issuance of common stock		505.1		525.9	59.3	$ 37.8
Impairment charges			390.0
Employee retention tax credits				39.2
Future amortization expense, year one			25.0	25.0
Future amortization expense, year two			25.0	25.0
Future amortization expense, year three			25.0	25.0
Future amortization expense, year four			25.0	25.0
Future amortization expense, year five			25.0	$ 25.0
Number of reporting units | reporting_unit				8
Gift cards breakage redemption period (in years)				12 years
Right-of-use assets obtained in exchange for new operating lease liabilities (less than)				$ 171.3
Operating lease liability, adjustments, net (less than)				1.0
Aggregate cumulative translation losses			4.5	4.5	(1.0)
Foreign currency transaction losses (gains) realized				(0.2)	$ (1.0)	$ 1.2
Operating lease right-of-use assets			3,969.2	3,969.2
Operating lease liabilities			4,436.9	$ 4,436.9
ASU 2016-02
Summary of Significant Accounting Policies [Line Items]
Operating lease right-of-use assets	$ 4,000.0
Operating lease liabilities	4,410.0
Deferred rent	359.1
Lease incentives	111.6
Goodwill
Summary of Significant Accounting Policies [Line Items]
Number of reporting units | reporting_unit				6
Trademarks
Summary of Significant Accounting Policies [Line Items]
Number of reporting units | reporting_unit				7
Cheddar’s Scratch Kitchen
Summary of Significant Accounting Policies [Line Items]
Number of restaurants | restaurant				8
Number of operating restaurants | restaurant				7
Number of closed restaurants | restaurant				1
Business combination, total consideration				$ 58.1
Business combination, allocated to land, buildings, and equipment			$ 29.9	$ 29.9
Minimum
Summary of Significant Accounting Policies [Line Items]
Renewal period of lease arrangements (in years)				5 years
Maximum
Summary of Significant Accounting Policies [Line Items]
Renewal period of lease arrangements (in years)				20 years
Capitalized Software | Minimum
Summary of Significant Accounting Policies [Line Items]
Finite lived intangible assets, useful life minimum (in years)				3 years
Capitalized Software | Maximum
Summary of Significant Accounting Policies [Line Items]
Finite lived intangible assets, useful life minimum (in years)				10 years
Definite-Lived Intangible Assets | Minimum
Summary of Significant Accounting Policies [Line Items]
Finite lived intangible assets, useful life minimum (in years)				1 year
Definite-Lived Intangible Assets | Maximum
Summary of Significant Accounting Policies [Line Items]
Finite lived intangible assets, useful life minimum (in years)				20 years
Building | Minimum
Summary of Significant Accounting Policies [Line Items]
Estimated useful life of property, plant and equipment, minimum (in years)				7 years
Building | Maximum
Summary of Significant Accounting Policies [Line Items]
Estimated useful life of property, plant and equipment, minimum (in years)				40 years
Equipment | Minimum
Summary of Significant Accounting Policies [Line Items]
Estimated useful life of property, plant and equipment, minimum (in years)				2 years
Equipment | Maximum
Summary of Significant Accounting Policies [Line Items]
Estimated useful life of property, plant and equipment, minimum (in years)				20 years
North America | Entity Operated Units
Summary of Significant Accounting Policies [Line Items]
Number of restaurants | restaurant			3	3
North America | Franchised Units
Summary of Significant Accounting Policies [Line Items]
Number of restaurants | restaurant			30	30
Latin America, the Middle East and Malaysia | Franchised Units
Summary of Significant Accounting Policies [Line Items]
Number of restaurants | restaurant			32	32
Cheddar’s Scratch Kitchen | Goodwill
Summary of Significant Accounting Policies [Line Items]
Impairment charges			$ 145.0
Cheddar’s Scratch Kitchen | Trademarks
Summary of Significant Accounting Policies [Line Items]
Impairment charges			$ 169.2
Retained Earnings
Summary of Significant Accounting Policies [Line Items]
Cumulative-effect adjustment to retained earnings	$ 3.8
Line of Credit
Summary of Significant Accounting Policies [Line Items]
Long-term line of credit		750.0
Term Loan
Summary of Significant Accounting Policies [Line Items]
Long-term debt		$ 270.0					$ 270.0