Default interest rate on overdue amounts excess of base interest rate.

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- Definition

Deferred payment obligation, interest payment.

+ References

No definition available.

+ Details

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- Definition

Fixed charge coverage ratio to each fiscal quarter after three years.

+ References

No definition available.

+ Details

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- Definition

Fixed charge coverage ratio to each fiscal quarter for next three years.

+ References

No definition available.

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- Definition

Line of credit facility leverage ratio.

+ References

No definition available.

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- Definition

Minimum net worth required for loan documentation.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Minimum rental income to achieve from tenants for succeeding four consecutive fiscal quarters to access incremental funding facility.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Minimum rental income to achieve from tenants on annual basis to access incremental funding facility.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Unencumbered fixed charge coverage ratio.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
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- Definition

Unencumbered fixed charge coverage ratio to each fiscal quarter for after three years.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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- Definition

Unencumbered fixed charge coverage ratio to each fiscal quarter for next three years.

+ References

No definition available.

+ Details

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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/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 210
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-Topic 946
-SubTopic 210
-Section 45
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
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- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28555-108399

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

+ Details

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Debt - Additional Information (Detail) - Term Loan Facility [Member] - USD ($)		3 Months Ended
	May 05, 2020	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Jul. 31, 2018
Debt Instrument [Line Items]
Principal amount outstanding		$ 1,600,000,000
Berkshire Hathaway [Member]
Debt Instrument [Line Items]
Principal amount outstanding					$ 2,000,000,000.0
Line of credit, maturity date			Jul. 31, 2023
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		$ 1,200,000,000
Default interest rate on overdue amounts excess of base interest rate	2.00%	2.00%
Debt issuance costs		$ 2,100,000
Unamortized debt issuance costs		$ 1,000,000.0		$ 1,100,000
'Deferred interest	$ 400,000,000.0
Berkshire Hathaway [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Fixed charge coverage ratio for each fiscal quarter till June 30, 2021		1.00%
Fixed charge coverage ratio for each fiscal quarter after June 30, 2021		1.20%
Unencumbered fixed charge coverage ratio for each fiscal quarter till June 30, 2021		1.05%
Unencumbered fixed charge coverage ratio to each fiscal quarter after June 30, 2021		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	$ 30,000,000.0
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					$ 400,000,000.0
Debt instrument, base annual interest rate		1.00%