Share-Based Compensation (Summary of Stock Option Activity) (Details) - Stock Options - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Number of Options (in shares)
Outstanding at the beginning of period (in shares)	2,087,505
Exercised (in shares)	(60,618)
Expired (in shares)	(506,677)
Outstanding at end of period (in shares)	1,520,210	2,087,505
Weighted Average Exercise Price (in dollars per share)
Outstanding at beginning of period (in dollars per share)	$ 14.59
Exercised (in dollars per share)	6.03
Expired (in dollars per share)	14.23
Outstanding at end of period (in dollars per share)	$ 15.06	$ 14.59
Weighted Average Remaining Contractual Term (years)
Weighted average remaining contractual term (in years)	2 years 8 months 12 days	3 years 2 months 12 days
Aggregate Intrinsic Value (millions)
Aggregate intrinsic value	$ 0.2	$ 0.1