HA Sustainable Infrastructure Capital, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Equity - Summary of Dividends Declared by Board of Directors (Detail)

v3.2.0.727

Equity - Summary of Dividends Declared by Board of Directors (Detail) - $ / shares							6 Months Ended
	Jul. 09, 2015	Apr. 09, 2015	Jan. 09, 2015	Oct. 09, 2014	Jul. 10, 2014	Apr. 09, 2014	Jun. 30, 2015
03/27/14 Record Date [Member]
Dividends Payable [Line Items]
Announced Date							Mar. 13, 2014
Record Date							Mar. 27, 2014
Pay Date							Apr. 09, 2014
Amount per share						$ 0.22
06/27/14 Record Date [Member]
Dividends Payable [Line Items]
Announced Date							Jun. 17, 2014
Record Date							Jun. 27, 2014
Pay Date							Jul. 10, 2014
Amount per share					$ 0.22
9/26/2014 Record Date [Member]
Dividends Payable [Line Items]
Announced Date							Sep. 16, 2014
Record Date							Sep. 26, 2014
Pay Date							Oct. 09, 2014
Amount per share				$ 0.22
12/19/14 Record Date [Member]
Dividends Payable [Line Items]
Announced Date							Dec. 08, 2014
Record Date							Dec. 19, 2014
Pay Date							Jan. 09, 2015
Amount per share			$ 0.26
3/30/15 Record Date [Member]
Dividends Payable [Line Items]
Announced Date							Mar. 17, 2015
Record Date							Mar. 30, 2015
Pay Date							Apr. 09, 2015
Amount per share		$ 0.26
6/30/15 Record Date [Member]
Dividends Payable [Line Items]
Announced Date							Jun. 16, 2015
Record Date							Jun. 30, 2015
Pay Date							Jul. 09, 2015
6/30/15 Record Date [Member] \| Subsequent Event [Member]
Dividends Payable [Line Items]
Amount per share	$ 0.26

- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

+ Details

Name:	us-gaap_CommonStockDividendsPerShareCashPaid
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the declared dividend will be paid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

+ Details

Name:	us-gaap_DividendPayableDateToBePaidDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the dividend to be paid was declared, in CCYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_DividendsPayableDateDeclaredDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	us-gaap_DividendsPayableDateOfRecordDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DividendsPayableLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_DividendsAxis=hasi_MarchTwentySevenTwoThousandFourteenRecordDateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=hasi_JuneTwentySevenTwoThousandFourteenRecordDateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=hasi_SeptemberTwentySixTwoThousandFourteenRecordDateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=hasi_DecemberNineteenTwoThousandFourteenRecordDateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=hasi_MarchThirtyTwoThousandFifteenRecordDateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=hasi_JuneThirtyTwoThousandFifteenRecordDateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: