Leases - Rental Agreements (Details) - Used Microturbine Equipment Rented to End Users $ in Millions	3 Months Ended
Jun. 30, 2022 USD ($) MW
Lessee, Lease, Description [Line Items]
Microturbines, power output \| MW	11.8
Commitment value \| $	$ 9.5
Arithmetic Average
Lessee, Lease, Description [Line Items]
Term of contract	36 months

Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI https://asc.fasb.org/extlink&oid=124258985&loc=SL77919359-209981

Name:	us-gaap_LessorOperatingLeaseTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant