Temporary Equity - Redeemable Preferred Units (Details) - USD ($) $ in Millions			3 Months Ended	9 Months Ended
	Dec. 07, 2023	Sep. 28, 2023	Dec. 31, 2023	Dec. 31, 2023
Class of Warrant or Right [Line Items]
Preferred units issued, subject to possible redemption (in shares)			10,449,863
Number of preferred units converted to common units				0
Capstone Green Energy LLC
Class of Warrant or Right [Line Items]
Preferred units issued, subject to possible redemption (in shares)		10,449,863
Preferred Units, Ownership Interest	37.50%	37.50%
Percentage of common units deemed outstanding		37.50%
Percentage of proportionate Preferred Units reduced		37.50%
Initial fair value of Temporary Equity recorded		$ 13.9