Term loan debt (Details) $ / shares in Units, $ in Thousands, shares in Millions			3 Months Ended		9 Months Ended
	Aug. 13, 2024 USD ($) $ / shares	Mar. 15, 2024 USD ($) tranche $ / shares	Sep. 30, 2024 USD ($) shares	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) shares	Sep. 30, 2023 USD ($)	Mar. 31, 2024 USD ($) yr
Line of Credit Facility [Line Items]
Interest expense				$ 4,311		$ 12,331
The Warrants
Line of Credit Facility [Line Items]
Exercise price of warrants (in dollars per share) | $ / shares	$ 1.03	$ 1.45
Relative fair value allocated to the initial warrants							$ 2,700
Value of warrants issued in relation to debt	10 days
Number of securities called by warrants (in shares) | shares			2.6		2.6
Warrants and rights outstanding, contractual term (in years)			7 years		7 years
Increase in fair value of debt discount	$ 200
Fair value			$ 1,000		$ 1,000
Gain on fair value					1,100
The Warrants | Expected Dividend Rate
Line of Credit Facility [Line Items]
Warrants and rights outstanding, measurement input							0
The Warrants | Measurement Input, Price Volatility
Line of Credit Facility [Line Items]
Warrants and rights outstanding, measurement input							0.811
The Warrants | Risk Free Interest Rate
Line of Credit Facility [Line Items]
Warrants and rights outstanding, measurement input							0.043
The Warrants | Measurement Input, Expected Term
Line of Credit Facility [Line Items]
Warrants and rights outstanding, measurement input | yr							7
Secured Debt | Line of Credit
Line of Credit Facility [Line Items]
Minimum cash coverage as a percentage of outstanding principal	45.00%
Percentage of aggregate original principal		5.00%
Secured Debt | Term Loan Facility | Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity		$ 175,000
Number of tranches | tranche		4
Proceeds from long-term lines of credit		$ 75,000
Debt issuance costs, gross		3,500
Debt issuance costs, net		2,700
Original issue discount		$ 800
Discount percentage		1.00%
Effective interest rate	16.00%						15.70%
Interest expense			$ 2,800		$ 6,100
Secured Debt | Term Loan Facility | Prime Rate | Line of Credit
Line of Credit Facility [Line Items]
Variable rate	1.45%
Secured Debt | Term Loan Facility | Prime Floor Rate | Line of Credit
Line of Credit Facility [Line Items]
Variable rate	9.95%
Secured Debt | Term Loan Facility | Paid In Kind | Line of Credit
Line of Credit Facility [Line Items]
PIK interest	2.45%
Secured Debt | Term Loan Facility Tranche Two | Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 25,000
Debt covenant, minimum gross cash proceeds	$ 75,000
Period immediately following achievement	30 days
Secured Debt | Term Loan Facility Tranche Three | Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 25,000
Period immediately following achievement	30 days
Debt covenant, product delivery period	6 months
Secured Debt | Term Loan Facility Tranche Three | Proceeds Received December 20, 2024 | Line of Credit
Line of Credit Facility [Line Items]
Debt covenant, minimum gross cash proceeds	$ 100,000
Secured Debt | Term Loan Facility Tranche Three | Proceeds Received June 30, 2025 | Line of Credit
Line of Credit Facility [Line Items]
Debt covenant, minimum gross cash proceeds	125,000
Secured Debt | Term Loan Facility Tranche Four | Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 50,000