Cover Page
Cover Page - USD ($) $ in Billions | 12 Months Ended | ||
Dec. 31, 2020 | Mar. 23, 2021 | Jun. 30, 2020 | |
Cover [Abstract] | |||
Document Type | 10-K/A | ||
Document Annual Report | true | ||
Document Period End Date | Dec. 31, 2020 | ||
Current Fiscal Year End Date | --12-31 | ||
Document Transition Report | false | ||
Entity File Number | 001-35877 | ||
Entity Registrant Name | HANNON ARMSTRONG SUSTAINABLEINFRASTRUCTURE CAPITAL, INC. | ||
Entity Incorporation, State or Country Code | MD | ||
Entity Tax Identification Number | 46-1347456 | ||
Entity Address, Address Line One | 1906 Towne Centre Blvd | ||
Entity Address, Address Line Two | Suite 370 | ||
Entity Address, City or Town | Annapolis | ||
Entity Address, State or Province | MD | ||
Entity Address, Postal Zip Code | 21401 | ||
City Area Code | 410 | ||
Local Phone Number | 571-9860 | ||
Title of 12(b) Security | Common Stock, $0.01 par value per share | ||
Trading Symbol | HASI | ||
Security Exchange Name | NYSE | ||
Entity Well-known Seasoned Issuer | Yes | ||
Entity Voluntary Filers | No | ||
Entity Current Reporting Status | Yes | ||
Entity Interactive Data Current | Yes | ||
Entity Filer Category | Large Accelerated Filer | ||
Entity Small Business | false | ||
Entity Emerging Growth Company | false | ||
ICFR Auditor Attestation Flag | true | ||
Entity Shell Company | false | ||
Entity Public Float | $ 2 | ||
Entity Common Stock, Shares Outstanding | 78,662,832 | ||
Documents Incorporated by Reference | Portions of the registrant’s proxy statement for the 2021 annual meeting of stockholders are incorporated by reference into Part III of this Annual Report on Form 10-K. | ||
Amendment Flag | true | ||
Amendment Description | Amendment to file financial statements of significant non-consolidated investees in accordance with Regulation S-X, Rule 3-09. | ||
Document Fiscal Year Focus | 2020 | ||
Document Fiscal Period Focus | FY | ||
Entity Central Index Key | 0001561894 |