Property, Software and Equipment, net - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Sep. 30, 2026	Dec. 31, 2025
Property, Plant and Equipment [Line Items]
Amortization and depreciation expense	$ 4,300,000	$ 3,000,000.0
Net book value	24,482,000			$ 28,783,000	[1]
Internal-use software
Property, Plant and Equipment [Line Items]
Amortization of capitalized internal-use software costs	4,200,000	2,900,000
Impairment of capitalized internal-use software	$ 0	$ 0
Property, plant and equipment, useful life (in years)				4 years
AI Related Internal Use Software Module
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)	1 year			4 years
Net book value	$ 1,800,000
AI Related Internal Use Software Module | Service Life
Property, Plant and Equipment [Line Items]
Amortization	$ 700,000
AI Related Internal Use Software Module | Service Life | Forecast
Property, Plant and Equipment [Line Items]
Amortization			$ 1,900,000

[1] Derived from audited financials