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

Annual report pursuant to Section 13 and 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 - Additional Information (Detail)

v3.6.0.2

Equity - Additional Information (Detail) - 2013 Plan [Member]	12 Months Ended
	Dec. 31, 2016 USD ($) shares
Restricted Common Stock [Member] \| Employees and Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded \| shares	368,513
Restricted Common Stock [Member] \| Employees and Directors [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted common shares vesting years	2019
Restricted Common Stock [Member] \| Employees and Directors [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted common shares vesting years	2016
Restricted Common Stock [Member] \| Certain Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded \| shares	292,542
Restricted Incentive [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense \| $	$ 10,000,000
Weighted-average term in which unrecognized compensation expense is expected to be recognized	2 years
Assumed forfeiture rate for calculation of equity-based compensation expense	5.00%
Restricted Incentive [Member] \| Maximum [Member] \| Accounting Standards Update 2016-09 [Member] \| Retained Deficit [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Adjustment to retained earnings for the equity based compensation expense \| $	$ 1,000,000

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