Research and Development Tax Credit (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended	9 Months Ended
	Feb. 28, 2022	Jun. 30, 2021	Jun. 30, 2022	Sep. 30, 2022	Sep. 30, 2021
Research and development expense decrease, foreign currency translation	$ 0.6
UK tax authority | Foreign tax authority
Percentage of credit eligible from tax authority				33.40%
Other Nonoperating Income		$ 4.2
Research and development expense, decrease				$ 4.0	$ 10.7
Research and development expense decrease, foreign currency translation				$ 0.5
Cash repayment to the HMRC due to submission of an amended claim.		$ 0.2
SME scheme | UK tax authority | Foreign tax authority
Percentage of credit eligible from tax authority				33.40%
RDEC scheme
Research and development expense, decrease			$ 4.0
RDEC scheme | UK tax authority
Research and development expense, decrease	$ 3.8
RDEC scheme | UK tax authority | Foreign tax authority
Percentage of credit eligible from tax authority				12.00%