Income Taxes - Schedule of Distributions (Details) - USD ($) $ in Thousands			3 Months Ended		12 Months Ended
	Aug. 25, 2021	Mar. 24, 2020	Sep. 30, 2021	[1]	Aug. 31, 2022	Aug. 31, 2021	Aug. 31, 2020
Income Taxes [Line Items]
Ordinary income	$ 265,593				$ 230,743	$ 251,171	$ 169,041
Capital gain					50,960	0	0
Return of capital	$ 12,263	$ 1,500	$ 3,695		0	25,784	96,720
Total dividends paid to common stockholders					281,703	276,955	$ 265,761
Preferred Stock
Income Taxes [Line Items]
Ordinary income					23,776	2,391
Capital gain					5,251	0
Return of capital					0	0
Total dividends paid to common stockholders					$ 29,027	$ 2,391

[1] Certain reclassifications have been made in the presentation of prior year amounts since initial disclosure in our Quarterly Report on Form 10-Q for the period ended September 30, 2021 to conform to the presentation in our Annual Report on Form 10-K for the year ended June 30, 2022. In addition, we have not yet finalized return of capital estimates for the current period. See Note 2 and Note 12 within the accompanying notes to consolidated financial statements for further discussion.