Warrants - Summary of Outstanding Equity - Classified Warrants to Purchase Common Stock (Details)	Jun. 30, 2025 $ / shares shares	Jun. 30, 2025 $ / shares shares	Dec. 31, 2024 $ / shares shares	Dec. 31, 2024 $ / shares shares	Jun. 30, 2024 $ / shares shares	Dec. 31, 2023 $ / shares shares
Class of Warrant or Right [Line Items]
Number of shares issued and exercisable (in shares) \| shares	130,017,835	130,017,835	11,770,888	11,770,888	17,165,833	17,165,833
Exercise price (in CAD per share) \| $ / shares		$ 0.34		$ 2.30	$ 4.83	$ 4.83
Equity-Classified Warrants
Class of Warrant or Right [Line Items]
Number of shares issued and exercisable (in shares) \| shares	130,017,835	130,017,835	11,770,888	11,770,888
Exercise price (in CAD per share) \| $ / shares	$ 0.34		$ 2.30
Equity-Classified Warrants \| Expiring on September 21, 2026
Class of Warrant or Right [Line Items]
Number of shares issued and exercisable (in shares) \| shares	11,122,105	11,122,105	11,122,105	11,122,105
Exercise price (in CAD per share) \| $ / shares	$ 1.96		$ 1.96
Equity-Classified Warrants \| Expiring on October 1, 2025
Class of Warrant or Right [Line Items]
Number of shares issued and exercisable (in shares) \| shares	648,783	648,783	648,783	648,783
Exercise price (in CAD per share) \| $ / shares	$ 8.12		$ 8.12
Equity-Classified Warrants \| Expiring on May 29, 2027
Class of Warrant or Right [Line Items]
Number of shares issued and exercisable (in shares) \| shares	118,246,947	118,246,947	0	0
Exercise price (in CAD per share) \| $ / shares	$ 0.14		$ 0