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Debt - Additional Information (Detail) - Term Loan Facility [Member] - USD ($) |  |  |  |  |  |  | 6 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Jul. 30, 2025 | Nov. 20, 2024 | Jul. 31, 2023 | Feb. 02, 2023 | May 05, 2020 | Jul. 31, 2018 | Jun. 30, 2025
Debt Instrument [Line Items] |  |  |  |  |  |  |
Principal payment on loan |  |  |  | $ 230,000,000 |  |  | $ 40,000,000
Principal amount outstanding |  |  |  | $ 800,000,000 |  |  | $ 200,000,000
Line of credit, maturity date |  |  |  |  |  |  | Jul. 31, 2025
Line of credit, extended maturity date |  |  |  | Jul. 31, 2025 |  |  | Jul. 31, 2026
Repayments of principal balance |  |  |  |  |  |  | $ 1,400,000,000
Debt instrument extended maturity term |  |  |  | 2 years |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of credit, extended maturity date | Jul. 31, 2026 |  |  |  |  |  |
Fee on the outstanding balance Exercise of the extension option | 2.00% |  |  |  |  |  |
Incremental facility fee | $ 4,000,000 |  |  |  |  |  |
Berkshire Hathaway [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Date of senior secured term loan agreement |  |  |  |  |  | Jul. 31, 2018 |
Principal amount outstanding |  |  |  |  |  | $ 2,000,000,000 |
Line of credit, maturity date |  |  |  |  |  |  | Jul. 31, 2023
Line of credit, extended maturity date |  | Jul. 31, 2026 |  |  |  |  | Jul. 31, 2025
Minimum rental income to achieve from tenants on annual basis to access incremental funding facility |  |  |  |  |  |  | $ 200,000,000
Minimum rental income to achieve from tenants for succeeding four consecutive fiscal quarters to access incremental funding facility |  |  |  |  |  |  | 200,000,000
Minimum net worth required for loan documentation on book basis |  |  |  |  |  |  | $ 1,200,000,000
Default interest rate on overdue amounts excess of base interest rate |  |  |  |  | 2.00% |  | 2.00%
Deferred interest |  |  |  |  | $ 400,000,000 |  |
Debt instrument extended maturity term |  | 1 year |  |  |  |  | 2 years
Principal reduced by maturity date |  |  | $ 800,000,000 |  |  |  |
Percentage of operating partnership payment on extension fee |  | 2.00% |  |  |  |  |
Operating partnership payment on extension fee |  | $ 4,000,000 |  |  |  |  |
Incremental facility fee |  | $ 4,000,000 |  |  |  |  |
Berkshire Hathaway [Member] | Minimum [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Fixed charge coverage ratio for each fiscal quarter after December 31, 2023 |  |  |  |  |  |  | 1.20%
Unencumbered fixed charge coverage ratio to each fiscal quarter after December 31, 2023 |  |  |  |  |  |  | 1.30%
Berkshire Hathaway [Member] | Maximum [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Unencumbered fixed charge coverage ratio |  |  |  |  |  |  | 60.00%
Maximum leverage ratio |  |  |  |  |  |  | 65.00%
Berkshire Hathaway [Member] | Maximum [Member] | Unrestricted Cash [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Available cash |  |  |  |  | $ 30,000,000 |  |
Berkshire Hathaway [Member] | Initial Funding [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Principal amount outstanding |  |  |  |  |  | 1,600,000,000 |
Debt instrument, base annual interest rate |  |  |  |  |  |  | 7.00%
Berkshire Hathaway [Member] | Incremental Funding Facility [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Principal amount outstanding |  |  |  |  |  | $ 400,000,000 |
Debt instrument, base annual interest rate |  |  |  |  |  |  | 1.00%

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 852 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481372/852-10-55-10 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 946 -SubTopic 830 -Name Accounting Standards Codification -Section 55 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479168/946-830-55-12 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 45 -Paragraph 21 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477796/946-210-45-21 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 45 -Paragraph 20 -SubTopic 210 -Topic 946 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477796/946-210-45-20 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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