Leases (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease right-of-use asset	$ 5.8	$ 6.6
Operating lease short-term liability	1.6	1.9
Operating lease long-term liability	$ 4.2	$ 4.7
Weighted average remaining lease term (in years)	6 years 1 month 24 days	6 years 6 months 18 days
Weighted average discount rate used in calculating right-of-use asset	3.49%	3.66%
Operating lease, liability, current, statement of financial position	Other current liabilities	Other current liabilities
Operating lease, liability, noncurrent, statement of financial position	Other long-term liabilities	Other long-term liabilities
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Cash, cash equivalents and restricted cash	Cash, cash equivalents and restricted cash