Employee benefit obligation (Details) $ in Millions	12 Months Ended
Dec. 31, 2025 USD ($) year	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Retirement Benefits [Abstract]
Minimum age to be eligible \| year	21
Minimum service period to be eligible	1 month
Employer match, percentage of salary deferral	100.00%
Employer match, percentage of compensation	3.00%
Employer match, vesting period	4 years
Matching contributions \| $	$ 1.7	$ 1.5	$ 1.5

Defined Contribution Plan, Eligibility, Minimum Age

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Defined Contribution Plan, Eligibility, Minimum Service Period

No definition available.

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Defined Contribution Plan, Employers Matching Contribution, Vesting Period

No definition available.

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No definition available.

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Amount of discretionary contributions made by an employer to a defined contribution plan.

No definition available.

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Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

No definition available.

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Percentage employer matches of the employee's percentage contribution matched.

No definition available.

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