Capital stock - June 2023 Public Offering (Details) - Underwriting Agreement - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
	Jun. 15, 2023	Mar. 31, 2024
Class of Stock [Line Items]
Period options are exercisable	30 days
Stock Issued, Pre Funded Warrants, Net of Issuance Costs		$ 91.4
Public
Class of Stock [Line Items]
Common shares, offered	7,181,409
Sale price of the Common Stock	$ 9.75
Underwriters
Class of Stock [Line Items]
Common shares, offered	1,308,000
Pre-Funded Warrant
Class of Stock [Line Items]
Exercise price of shares of common stock in the warrant issued (in dollars per share)	$ 0.001
Maximum amount of common stock owned, as a percentage, that would prevent exercise	9.99%
Days of notice for increase/decrease to maximum percentage owned	61 days
Upper limit of maximum amount of common stock owned by a holder, as a percentage	19.99%
Shares issued		1,538,591
Pre-Funded Warrant | Investors
Class of Stock [Line Items]
Common shares, offered	1,538,591
Sale price of the Common Stock	$ 9.749
Exercise price of shares of common stock in the warrant issued (in dollars per share)	$ 0.001
Common stock
Class of Stock [Line Items]
Shares issued		8,489,409