Real Estate Transactions Narrative (Details) $ in Millions		3 Months Ended	6 Months Ended	9 Months Ended		12 Months Ended	18 Months Ended
	Nov. 09, 2015 USD ($) property shares	Feb. 28, 2016 USD ($) restaurant property	Feb. 28, 2016 USD ($) restaurant property	Feb. 28, 2016 USD ($) restaurant property	Feb. 22, 2015 USD ($)	May. 31, 2015 property	Nov. 29, 2015 USD ($) transaction	Jun. 23, 2015 company
Debt Instrument [Line Items]
Number of real estate properties | property	418	424	424	424
Sale leaseback transaction, number of properties | property						64
Sale leaseback transaction, number of transactions completed				49		14	63
Proceeds from financing lease obligation		$ 131.0		$ 0.0	$ 93.1		$ 234.9
Sale leaseback transaction, deferred gain, net		46.7	$ 46.7	46.7
Sale leaseback transaction, current period gain recognized		6.3
Number of companies | company								2
Stock issued during period, shares, stock splits | shares	1
Special cash distribution from Four Corners Property Trust				315.0	$ 0.0
Separation of four corners property trust	$ 435.4			$ (435.4)
Spinoff transaction, net book value	834.8
Deferred tax liabilities, net	$ 84.4
Sale leaseback transaction, initial lease term				15 years
Renewal period of lease arrangements				15 years
Sale leaseback transaction, imputed interest rate				1.50%
Extinguishment of debt, amount		$ 1,010.0	$ 1,010.0
Texas
Debt Instrument [Line Items]
Number of restaurants | restaurant		6	6	6
LongHorn Steakhouse | Texas
Debt Instrument [Line Items]
Number of restaurants | restaurant		6	6	6