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Nonrecourse Debt - Analysis of Other Nonrecourse Debt by Interest Rate (Detail) (USD $)
In Thousands, unless otherwise specified
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3 Months Ended |
12 Months Ended |
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Mar. 31, 2015
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Dec. 31, 2014
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| Debt Instrument [Line Items] |
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| Other nonrecourse debt, Balance |
110,954hasi_OtherNonRecourseDebt
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112,525hasi_OtherNonRecourseDebt
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| Fixed-Rate Promissory Notes, Interest Rates from 2.06% to 5.00% Per Annum [Member] |
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| Debt Instrument [Line Items] |
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| Other nonrecourse debt, Balance |
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32,000hasi_OtherNonRecourseDebt
/ us-gaap_DebtInstrumentAxis
= hasi_FixedRatePromissoryNotesInterestRatesFromTwoPointZeroSixPercentToFivePercentPerAnnumMember
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| Fixed-Rate Promissory Notes, Interest Rates from 5.01% to 6.50% Per Annum [Member] |
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| Debt Instrument [Line Items] |
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| Other nonrecourse debt, Balance |
54,000hasi_OtherNonRecourseDebt
/ us-gaap_DebtInstrumentAxis
= hasi_FixedRatePromissoryNotesInterestRatesFromFivePointZeroOnePercentToSixPointFiveZeroPercentPerAnnumMember
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58,000hasi_OtherNonRecourseDebt
/ us-gaap_DebtInstrumentAxis
= hasi_FixedRatePromissoryNotesInterestRatesFromFivePointZeroOnePercentToSixPointFiveZeroPercentPerAnnumMember
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| Fixed-Rate Promissory Notes, Interest Rates from 6.51% to 8.00% Per Annum [Member] |
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| Debt Instrument [Line Items] |
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| Other nonrecourse debt, Balance |
23,000hasi_OtherNonRecourseDebt
/ us-gaap_DebtInstrumentAxis
= hasi_FixedRatePromissoryNotesInterestRatesFromSixPointFiveOnePercentToEightPercentPerAnnumMember
|
23,000hasi_OtherNonRecourseDebt
/ us-gaap_DebtInstrumentAxis
= hasi_FixedRatePromissoryNotesInterestRatesFromSixPointFiveOnePercentToEightPercentPerAnnumMember
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| Fixed-Rate Promissory Notes, Interest Rates from 2.26% to 5.00% Per Annum [Member] |
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| Debt Instrument [Line Items] |
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| Other nonrecourse debt, Balance |
34,000hasi_OtherNonRecourseDebt
/ us-gaap_DebtInstrumentAxis
= hasi_FixedRatePromissoryNotesInterestRatesFromTwoPointTwoSixPercentToFivePercentPerAnnumMember
|
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| Minimum [Member] | Fixed-Rate Promissory Notes, Interest Rates from 2.06% to 5.00% Per Annum [Member] |
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| Debt Instrument [Line Items] |
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| Other nonrecourse debt, Maturity |
|
2015
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| Minimum [Member] | Fixed-Rate Promissory Notes, Interest Rates from 5.01% to 6.50% Per Annum [Member] |
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|
| Debt Instrument [Line Items] |
|
|
| Other nonrecourse debt, Maturity |
2015
|
2015
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| Minimum [Member] | Fixed-Rate Promissory Notes, Interest Rates from 6.51% to 8.00% Per Annum [Member] |
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|
| Debt Instrument [Line Items] |
|
|
| Other nonrecourse debt, Maturity |
2015
|
2015
|
| Minimum [Member] | Fixed-Rate Promissory Notes, Interest Rates from 2.26% to 5.00% Per Annum [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Other nonrecourse debt, Maturity |
2015
|
|
| Maximum [Member] | Fixed-Rate Promissory Notes, Interest Rates from 2.06% to 5.00% Per Annum [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Other nonrecourse debt, Maturity |
|
2032
|
| Maximum [Member] | Fixed-Rate Promissory Notes, Interest Rates from 5.01% to 6.50% Per Annum [Member] |
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| Debt Instrument [Line Items] |
|
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| Other nonrecourse debt, Maturity |
2031
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2031
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| Maximum [Member] | Fixed-Rate Promissory Notes, Interest Rates from 6.51% to 8.00% Per Annum [Member] |
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| Debt Instrument [Line Items] |
|
|
| Other nonrecourse debt, Maturity |
2031
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2031
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| Maximum [Member] | Fixed-Rate Promissory Notes, Interest Rates from 2.26% to 5.00% Per Annum [Member] |
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|
| Debt Instrument [Line Items] |
|
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| Other nonrecourse debt, Maturity |
2032
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