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Related Party Transactions - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions			1 Months Ended		3 Months Ended	6 Months Ended		12 Months Ended
	Aug. 04, 2021	Apr. 01, 2021	May 31, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2021	Mar. 15, 2021
Related Party Transaction [Line Items]
Cash proceeds for redemption					$ 3,205	$ 50,828	$ 3,205
VICI Properties, Inc [Member] | Subsequent Event [Member]
Related Party Transaction [Line Items]
Annual rent payments under master lease of properties	$ 860,000
Fixed exchange ratio, share price	$ 43
Cash consideration	$ 4,400,000
Ownership interest	$ 370,000
Real Estate Assets and Leases [Member] | Blackstone Real Estate Income Trust [Member] | Bellagio BREIT Venture [Member]
Related Party Transaction [Line Items]
Ownership interest						5.00%
MGP [Member] | Blackstone Real Estate Income Trust [Member] | Lease Agreements [Member]
Related Party Transaction [Line Items]
Ownership interest						50.10%
MGM Growth Properties LLC [Member] | Operating Partnership [Member]
Related Party Transaction [Line Items]
Operating partnership units, redeemed				37
Cash proceeds for redemption				$ 1,200,000
Ownership interest				42.10%				42.10%	42.10%
Master Lease [Member]
Related Party Transaction [Line Items]
Annual rent payments under master lease of properties		$ 843,000	$ 30,000					$ 828,000
Fixed annual rent escalator percentage		2.00%
Cash consideration			400,000
Fixed annual rent			$ 27,000
Increase in annual rent per year, percentage			2.00%

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