Annual report pursuant to Section 13 and 15(d)

Long-term Debt - Outstanding Non-Recourse Asset-Backed Debt and Bank Loans (Details)

v3.24.0.1
Long-term Debt - Outstanding Non-Recourse Asset-Backed Debt and Bank Loans (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Assets $ 6,552,350 $ 4,760,148
Non-recourse    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Unamortized financing costs (2,000) (9,000)
Total debt 160,000 433,000
Collateral Pledged    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Restricted cash 11,000 20,000
Pledged | Non-recourse    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Assets 239,000 632,000
Asset-Backed Non-recourse Debt | Pledged | Collateral Pledged    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Assets 239,000 632,000
Asset-Backed Non-recourse Debt | HASI Sustainable Yield Bond 2015-1A | Non-recourse    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Principal $ 68,000 73,000
Interest Rate 4.28%  
Anticipated Balance at Maturity $ 0  
Asset-Backed Non-recourse Debt | HASI Sustainable Yield Bond 2015-1A | Pledged | Non-recourse    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Collateral pledged against our non-recourse debt 136,000 136,000
Asset-Backed Non-recourse Debt | HASI SYB Trust 2016-2 | Non-recourse    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Principal $ 51,000 56,000
Interest Rate 4.35%  
Anticipated Balance at Maturity $ 0  
Asset-Backed Non-recourse Debt | HASI SYB Trust 2016-2 | Pledged | Non-recourse    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Collateral pledged against our non-recourse debt 57,000 63,000
Asset-Backed Non-recourse Debt | HASI SYB Trust 2017-1 | Non-recourse    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Principal $ 0 141,000
Interest Rate 3.86%  
Anticipated Balance at Maturity $ 0  
Asset-Backed Non-recourse Debt | HASI SYB Trust 2017-1 | Pledged | Non-recourse    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Collateral pledged against our non-recourse debt 0 231,000
Asset-Backed Non-recourse Debt | Lannie Mae Series 2019-1 | Non-recourse    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Principal $ 0 90,000
Interest Rate 3.68%  
Anticipated Balance at Maturity $ 0  
Asset-Backed Non-recourse Debt | Lannie Mae Series 2019-1 | Pledged | Non-recourse    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Collateral pledged against our non-recourse debt 0 120,000
Other Non-recourse Debt | Non-recourse    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Other non-recourse debt 43,000 82,000
Anticipated Balance at Maturity 17,000  
Other Non-recourse Debt | Pledged | Non-recourse    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Collateral pledged against our non-recourse debt $ 46,000 $ 82,000
Other Non-recourse Debt | Minimum | Non-recourse    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Interest Rate 3.15%  
Other Non-recourse Debt | Maximum | Non-recourse    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Interest Rate 7.23%