Stock Compensation Plans - Narrative (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Potential shares of common stock issued under current stock compensation plan (in shares)		21,000,000
Stock compensation plan, expiration date		Feb. 28, 2032
Contractual term	[1]			7 years 6 months
Aggregate intrinsic value of options exercised		$ 0.4	$ 11.0	$ 0.0
Unearned compensation cost related to unvested portion		$ 17.0
Remaining vesting period		through the fourth quarter of 2025
Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares that count towards shares authorized limit per share granted (in shares)		1
Vesting period		4 years
Stock options conversion basis (in shares)		1
Contractual term		10 years
Cancellation, days after termination of employment		90 days
Options | Year 1
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage		0.25%
Options | Year 2
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage		0.25%
Options | Year 3
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage		0.25%
Options | Year 4
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage		0.25%
Awards, Excluding Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares that count towards shares authorized limit per share granted (in shares)		2
Performance Share Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award performance period		3 years
Performance Share Units | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of units earned to units granted		0.00%	0.00%
Performance Share Units | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of units earned to units granted		200.00%	133.00%
Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award performance period		3 years

[1] We review the assumptions used in our Black-Scholes model in conjunction with estimating the grant date fair value of grants of options by our Board of Directors. There were no stock options granted during 2022 or 2021.