Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v3.21.2
Subsequent Events - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended
Aug. 31, 2021
Jul. 31, 2021
Jun. 30, 2021
Dec. 31, 2020
Subsequent Event [Line Items]        
Debt instrument, face amount     $ 350,000 $ 350,009
Line of credit facility, Maximum borrowing capacity     $ 6,066,690  
Subsequent Event [Member]        
Subsequent Event [Line Items]        
Percentage of fully diluted equity ownership after contractual exercise   $ 36.4    
Subsequent Event [Member] | Series A 2 Convertible Preferred Units [Member]        
Subsequent Event [Line Items]        
Warrant exercised for purchase of units   6,426,015    
Contractual cash exercise price   $ 0.0001    
Subsequent Event [Member] | Mortgage Backed Notes [Member]        
Subsequent Event [Line Items]        
Debt instrument, face amount   $ 331,900    
Debt instrument, interest rate stated percentage   1.30%    
Debt instrument, maturity date   Jul. 31, 2026    
Subsequent Event [Member] | Amended July Two Thousand And Twenty One And Two Hundred Million USD Facility [Member]        
Subsequent Event [Line Items]        
Line of credit facility, Maximum borrowing capacity   $ 200,000    
Maturity date   July 2022    
Subsequent Event [Member] | Amended August Two Thousand And Twenty One And Three Hundred Million USD Facility [Member]        
Subsequent Event [Line Items]        
Line of credit facility, Maximum borrowing capacity $ 300,000      
Maturity date September 2021      
Subsequent Event [Member] | Reverse Mortgage Loans [Member]        
Subsequent Event [Line Items]        
Mortgage loan receivable   $ 296,000    
Debt instrument, interest rate stated percentage   98.30%    
Debt instrument, maturity date   Jul. 31, 2024