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

Our Portfolio - Equity Method Investments (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($) equity_investment	Dec. 31, 2021 USD ($)
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 1,921,515	$ 1,759,651
Jupiter Equity Holdings LLC
Schedule of Equity Method Investments [Line Items]
Carrying Value	539,000
Lighthouse Partnerships
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 395,000
Number of partnership interests \| equity_investment	3
Phase V Class A LLC
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 191,000
University of Iowa Energy Collaborative Holdings LLC
Schedule of Equity Method Investments [Line Items]
Carrying Value	128,000
Vivint Solar Asset 3 HoldCo Parent, LLC
Schedule of Equity Method Investments [Line Items]
Carrying Value	110,000
Other investees
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 559,000