Commitments (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Commitments And Contingencies Disclosure [Line Items]
Restricted cash and investments for security deposit	$ 1.5	$ 1.5
Lease, practical expedients, package	true
Licensing and Purchasing Agreements [Member]
Commitments And Contingencies Disclosure [Line Items]
Other commitments	$ 65.9
Executive Severance Plans [Member]
Commitments And Contingencies Disclosure [Line Items]
Other commitments	$ 17.3
Minimum [Member]
Commitments And Contingencies Disclosure [Line Items]
Initial terms of lease	1 year
Maximum [Member]
Commitments And Contingencies Disclosure [Line Items]
Initial terms of lease	17 years