Contingencies (Narrative) (Details) $ in Millions		12 Months Ended
	Apr. 02, 2018 Employee	Dec. 31, 2021 USD ($)
Loss Contingencies [Line Items]
Number of people involved in lawsuit | Employee	2
Rate of royalty payments invoiced by plaintiffs	25.00%
Rate of royalty payments claimed by plaintiffs	50.00%
Loss Contingency, Maximum Liability		$ 7.3
First And Second Case [Member]
Loss Contingencies [Line Items]
Loss Contingency Accrual		7.0
Performance Bank Guarantee [Member]
Loss Contingencies [Line Items]
Loss Contingency, Maximum Liability		$ 3.5