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Securitization of Receivables - Summary of Certain Transactions between us and Securitization Trusts (Detail) (Securitization Trust [Member], USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
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Mar. 31, 2015
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Mar. 31, 2014
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| Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items] | ||
| Gains on securitizations | $ 3us-gaap_GainLossOnSecuritizationOfFinancialAssets | $ 2us-gaap_GainLossOnSecuritizationOfFinancialAssets |
| Purchase of receivables securitized | 60hasi_PaymentsToAcquireAccountsReceivableSecuritization | 65hasi_PaymentsToAcquireAccountsReceivableSecuritization |
| Proceeds from securitizations | 63us-gaap_ProceedsFromAccountsReceivableSecuritization | 67us-gaap_ProceedsFromAccountsReceivableSecuritization |
| Cash received from residual assets | 0.4hasi_CashReceivedFromResidualAssets | 0.8hasi_CashReceivedFromResidualAssets |
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Residual Assets [Member]
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| Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items] | ||
| Residual and servicing assets included in Other Assets |
$ 9us-gaap_RetainedInterestFairValueDisclosure / us-gaap_FinancialInstrumentAxis = hasi_ResidualAssetsMember / dei_LegalEntityAxis = hasi_SecuritizationTrustMember |
$ 6us-gaap_RetainedInterestFairValueDisclosure / us-gaap_FinancialInstrumentAxis = hasi_ResidualAssetsMember / dei_LegalEntityAxis = hasi_SecuritizationTrustMember |
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- Definition
Cash Received From Residual Assets No definition available.
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| X | ||||||||||
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- Definition
Payments to Acquire Accounts Receivable Securitization No definition available.
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| X | ||||||||||
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- Details
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- Definition
A gain (loss) realized on a transfer, accounted for as a sale, of all or a portion of financial assets in which the transferor surrenders control and receives consideration other than a beneficial interest in the assets transferred. Reflects the amount of sales proceeds in excess of, or deficient from, the sum of the carrying amounts of transferred financial assets plus transaction costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Proceeds from securitizations of receivables treated as collateralized borrowings, which are classified as financing transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Fair value portion of interest continued to be held by a transferor after transferring financial assets to a third party. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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