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v3.21.2

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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