Commitments and contingencies Details (Details) $ in Thousands	1 Months Ended	9 Months Ended
	Aug. 09, 2023 USD ($)	Sep. 27, 2025 USD ($)
Loss contingency, number of claims alleged		3
Litigation settlement, amount awarded to other party	$ 3,984
Estimated Litigation Liability		$ 220,000
Loss Contingency, Damages Awarded, Value		4,906
Awarded damages
Loss Contingency, Damages Awarded, Value		3,100
Expenses of litigation
Loss Contingency, Damages Awarded, Value		$ 2,351
Percent of fault, defendant
Litigation award, percent of fault		0.90
Percent of fault, plaintiff
Litigation award, percent of fault		0.10
Northern California wildfires
Loss contingency, number of claims alleged		5
Fire Victims Trust
Loss contingency, number of claims alleged		3
Former Wolf employee defendants [Member]
Loss contingency, number of defendants		2
Employee and former employee defendants [Member]
Loss contingency, number of defendants		4
defendants indicted [Member]
Loss contingency, number of defendants		3
Defendants who pled guilty
Loss contingency, number of defendants		3