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Notes Payable - Narratives (Details) $ in Thousands		1 Months Ended			3 Months Ended
Notes Payable - Narratives (Details) $ in Thousands	May 11, 2021 USD ($) tranche	Mar. 31, 2022 USD ($)	Sep. 30, 2021 USD ($)	May 31, 2021 USD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Aug. 31, 2023 USD ($)	Oct. 31, 2022	Oct. 27, 2022 USD ($)	Sep. 30, 2022
Notes Payable
Contractual exit fee					$ 2,003
Interest expense					4,346	$ 4,147
Amortization of debt issuance costs					609	$ 480
Total debt commitments					75,000		$ 75,000
Minimum liquidity covenant, cash and cash equivalents					15,000
Term Loan Tranche C
Notes Payable
Debt commitment, terminated							$ 25,000
Oaktree Capital Management LP Credit Agreement
Notes Payable
Term of loan facility	5 years
Maximum borrowing capacity available under the credit agreement	$ 125,000
Number of tranches \| tranche	5
Proceeds from line of credit		$ 30,000	$ 30,000	$ 15,000
Accrued interest rate (as a percent)	11.50%
Percentage of periodic principal payment	5.00%
Upfront fee (as a percent)	2.00%
Commitment fee (as a percent)	0.75%
Commitment fee accrual period	120 days
Debt issuance costs									$ 500
Debt issuance costs		1,800	1,200	4,400
Contractual exit fee			600	300
Interest expense					2,700
Interest on term loan					2,200
Amortization of debt issuance costs					$ 500
Exit fee, percentage	2.67%							2.67%	2.00%	2.00%
Oaktree Capital Management LP Credit Agreement \| Maximum
Notes Payable
Contractual exit fee		600
Oaktree Capital Management LP Credit Agreement \| Scenario Of Prepayment On Or Before May 11, 2023
Notes Payable
Prepayment premium (as a percent)	4.00%
Oaktree Capital Management LP Credit Agreement \| Scenario Of Prepayment Between May 11, 2024 To May 11, 2025
Notes Payable
Prepayment premium (as a percent)	2.00%
Oaktree Capital Management LP Credit Agreement \| Scenario Of Prepayment After May 11, 2025
Notes Payable
Prepayment premium (as a percent)	0.00%
Oaktree Capital Management LP Credit Agreement \| Term Loans Tranche A-1
Notes Payable
Proceeds from line of credit				$ 15,000
Oaktree Capital Management LP Credit Agreement \| Term Loans Tranche A-2
Notes Payable
Proceeds from line of credit			$ 30,000
Oaktree Capital Management LP Credit Agreement \| Term Loan Tranche B
Notes Payable
Proceeds from line of credit		30,000
Oaktree Capital Management LP Credit Agreement \| Term Loan Tranche B \| Maximum
Notes Payable
Commitment fees		$ 100