Stock-based compensation - Shares Available for Issuance Rollforward (Details) - shares	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Shares Available For Issuance [Roll Forward]
Available for Issuance, ending balance (in shares)	3,990,281
2025 Performance And Incentive Pay Plan
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Shares Available For Issuance [Roll Forward]
Number of shares transferred into plan (in shares)	490,281
Available for Issuance, ending balance (in shares)	3,990,281
2020 Performance and Incentive Pay Plan
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Shares Available For Issuance [Roll Forward]
Available for Issuance, beginning balance (in shares)	966,926
Granted (in shares)	(491,949)	(435,204)
Canceled/forfeited (in shares)	15,304	20,014
Shares transferred out of plan (in shares)	(490,281)
Available for Issuance, ending balance (in shares)	0	966,926