Revenue - Revenue Recognition (Details) - USD ($)	3 Months Ended		6 Months Ended	9 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Mar. 31, 2025	Jun. 30, 2025	Jun. 30, 2024	Sep. 30, 2024	Sep. 30, 2023
Capitalized Contract Cost [Line Items]
Current contract assets	$ 900,000			$ 900,000		$ 1,700,000	$ 900,000
Non-current contract assets	0			0		0	0
Current contract liabilities	$ 1,600,000			1,600,000		2,200,000	1,900,000
Non-current contract liabilities						0	$ 0
Revenue recognized included in contract liability				$ 1,600,000
Practical Expedient, Incremental Costs				true
Amortization Period	3 years			3 years
Current capitalized costs	$ 1,000			$ 1,000		177,000
Non-current capitalized costs	0			0		$ 0
Incremental costs amortized	$ 22,000	$ 122,000		$ 176,000	$ 351,000
Impairment related to costs capitalized			$ 0		$ 0
Payment terms				30 days
Remaining Performance Obligation, Optional Exemption				true
Europe | Maximum
Capitalized Contract Cost [Line Items]
Payment terms				90 days