Consolidated Balance Sheet Components - Narrative (Details) $ in Thousands			3 Months Ended		9 Months Ended
	Aug. 06, 2025 USD ($)	Aug. 06, 2025 JPY (¥)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)
Schedule of Equity Method Investments [Line Items]
Depreciation and amortization expense			$ 200	$ 100	$ 500	$ 300
Amortization expense of capitalized internal-use software placed in service			100	$ 100	500	200
Crypto asset			1,700		1,700		$ 1,200
Impairment of long-lived assets					708	889
Consideration transferred					11,472	$ 0
Equity method investment			11,472		11,472		$ 0
MHT
Schedule of Equity Method Investments [Line Items]
Ownership percentage	28.00%	28.00%
Consideration transferred	$ 11,500	¥ 1,676,551,082
Equity method investment			$ 79,500		$ 79,500