Credit Facility - Narrative (Details)	May 28, 2020 USD ($)	Sep. 01, 2017 USD ($)	Apr. 30, 2021	Sep. 01, 2018 USD ($)	Aug. 31, 2017 USD ($)
Minimum | Revolving Credit Facility
Line of Credit Facility [Line Items]
Commitment fee percentage on unused portion of the Facility	0.20%
Maximum | Revolving Credit Facility
Line of Credit Facility [Line Items]
Commitment fee percentage on unused portion of the Facility	0.45%
Prior Credit Facility | Revolving Credit Facility | Line of Credit
Line of Credit Facility [Line Items]
Line of credit facility, borrowing capacity					$ 800,000,000.0
Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, term		5 years
Fixed charge coverage ratio	1.25
Debt instrument, covenant, liquidity required, minimum	$ 250,000,000.0
Weighted average interest rate			2.12%
Deferred financing costs	$ 4,600,000	$ 18,700,000
Credit Facility | Covenant Period, Quarter Ending October 2022
Line of Credit Facility [Line Items]
Leverage ratio	4.00
Credit Facility | Line of Credit
Line of Credit Facility [Line Items]
Deferred financing costs		5,200,000
Credit Facility | Term Loan
Line of Credit Facility [Line Items]
Debt instrument, face amount		800,000,000.0
Deferred financing costs		13,400,000
Credit Facility | Revolving Credit Facility | Line of Credit
Line of Credit Facility [Line Items]
Line of credit facility, borrowing capacity		900,000,000.0
Borrowing capacity after initial year of term				$ 800,000,000.0
Credit Facility | Standby Letters of Credit
Line of Credit Facility [Line Items]
Line of credit facility, borrowing capacity		300,000,000.0
Credit Facility | Swing Line Loan
Line of Credit Facility [Line Items]
Line of credit facility, borrowing capacity		$ 75,000,000.0
Credit Facility | Minimum | Revolving Credit Facility
Line of Credit Facility [Line Items]
Commitment fee percentage on unused portion of the Facility		0.20%
Credit Facility | Maximum | Revolving Credit Facility
Line of Credit Facility [Line Items]
Commitment fee percentage on unused portion of the Facility		0.35%
Credit Facility | Eurodollar | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.00%	1.00%
Credit Facility | Eurodollar | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.75%	2.25%
Credit Facility | Base Rate | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.00%	0.00%
Credit Facility | Base Rate | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.75%	1.25%