Share Incentive Plans, Compensation Expense Related to Options (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Sep. 30, 2022 |
Sep. 30, 2021 |
Sep. 30, 2022 |
Sep. 30, 2021 |
|
Compensation Expense [Abstract] | ||||
Compensation expense related to options | $ 0.3 | $ 0.3 | $ 0.8 | $ 2.0 |
Unrecognized compensation expense related to options | $ 1.0 | $ 1.0 | ||
Period over which unrecognized compensation expense will be expensed | 1 year 11 months 23 days |