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Restructuring charges - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Dec. 31, 2025	Mar. 31, 2025
Restructuring Reserve [Roll Forward]
Restructuring charges	$ 61		$ 2,430
Third quarter 2024 restructuring
Restructuring Cost and Reserve [Line Items]
Expected percent of positions eliminated		25.00%
Severance Costs		$ 12,700
Restructuring Reserve [Roll Forward]
Restructuring liability Start of Period	4,000
Cash paid	0
Non-cash settlements	0
Restructuring liability End of Period	4,000	4,000
Restructuring charges		18,700
Third quarter 2024 restructuring \| Employee Severance and Pay Related Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring liability Start of Period	0
Cash paid	0
Non-cash settlements	0
Restructuring liability End of Period	0	0
Third quarter 2024 restructuring \| Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Cash paid	0
Non-cash settlements	0
Third quarter 2024 restructuring \| Contract Termination
Restructuring Reserve [Roll Forward]
Restructuring liability Start of Period	4,000
Restructuring liability End of Period	$ 4,000	4,000
Restructuring charges		$ 6,000