Leases (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2022	Nov. 30, 2021	Nov. 30, 2020
Leases [Abstract]
Operating lease expense	$ 0.0	$ 0.4	$ 0.4	$ 0.4
Right-of-use assets	0.5	0.2
Lease obligations	$ 0.5	$ 0.2
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent	Other Assets, Noncurrent
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other current liabilities	Other current liabilities
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other noncurrent liabilities	Other noncurrent liabilities