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Common stock and common stock warrants - Narrative (Details)	3 Months Ended
	Mar. 31, 2025 USD ($) vote shares	Dec. 31, 2024 vote
Common stock and common stock warrants
Cash dividends | $	$ 0
Class A Common stock
Common stock and common stock warrants
Number of votes per share held | vote	1	1
Conversion of Class B common stock to Class A common stock (in shares)	810,000
Increase (decrease) in total number of shares outstanding (in shares)	810,000
Shares reserved (in shares)	28,866,867
Class B Common stock
Common stock and common stock warrants
Conversion of Class B common stock to Class A common stock (in shares)	(810,000)
Increase (decrease) in total number of shares outstanding (in shares)	(810,000)

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