Hannon Armstrong Sustainable Infrastructure Capital, Inc. Annual report pursuant to Section 13 and 15(d)

v3.24.0.1

Securitization of Financial Assets - Schedule Of Allowance For Loss On Securitization Residual Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounts Receivable From Securitization Allowance For Credit Loss [Roll Forward]
Beginning balance	$ 0
Provision for loss on securitization asset	11,832	$ 12,798	$ 496
Ending balance	3,000	0
Securitized assets \| Commercial receivables
Accounts Receivable From Securitization Allowance For Credit Loss [Roll Forward]
Beginning balance	0	0
Provision for loss on securitization asset	3,000	0
Provision recorded on purchase of a credit deteriorated asset	0	0
Write-off of allowance	0	0
Recovery of allowance	0	0
Ending balance	3,000	0	0
Securitized assets \| Government receivables
Accounts Receivable From Securitization Allowance For Credit Loss [Roll Forward]
Beginning balance	0	0
Provision for loss on securitization asset	0	0
Provision recorded on purchase of a credit deteriorated asset	0	0
Write-off of allowance	0	0
Recovery of allowance	0	0
Ending balance	$ 0	$ 0	$ 0

Accounts Receivable From Securitization, Allowance For Credit Loss

No definition available.

Name:	hasi_AccountsReceivableFromSecuritizationAllowanceForCreditLoss
Namespace Prefix:	hasi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Accounts Receivable From Securitization, Allowance For Credit Loss, Recovery

No definition available.

Name:	hasi_AccountsReceivableFromSecuritizationAllowanceForCreditLossRecovery
Namespace Prefix:	hasi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Accounts Receivable From Securitization Allowance For Credit Loss

No definition available.

Name:	hasi_AccountsReceivableFromSecuritizationAllowanceForCreditLossRollForward
Namespace Prefix:	hasi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Accounts Receivable From Securitization, Allowance For Credit Loss, Writeoff

No definition available.

Name:	hasi_AccountsReceivableFromSecuritizationAllowanceForCreditLossWriteoff
Namespace Prefix:	hasi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Accounts Receivable from Securitization, Credit Loss, Expense (Reversal)

No definition available.

Name:	hasi_AccountsReceivableFromSecuritizationCreditLossExpenseReversal
Namespace Prefix:	hasi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Accounts Receivable from Securitization, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date

No definition available.

Name:	hasi_AccountsReceivableFromSecuritizationPurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate
Namespace Prefix:	hasi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=hasi_CommercialReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=hasi_GovernmentReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: