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Debt - Additional Information (Detail) - Term Loan Facility [Member] - USD ($)
3 Months Ended
May 05, 2020
Mar. 31, 2020
Dec. 31, 2019
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%  
Debt issuance costs   $ 2,100,000  
Unamortized debt issuance costs   $ 1,400,000 $ 1,500,000
'Deferred interest $ 400,000,000.0    
Berkshire Hathaway [Member] | Subsequent Event [Member]      
Debt Instrument [Line Items]      
Default interest rate on overdue amounts excess of base interest rate 2.00%    
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] | Subsequent Event [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%