Share-based Compensation Plans - Additional Information (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($) shares	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) plan shares	Sep. 30, 2022 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share-based compensation plans in effect | plan			2
Shareholder return period			3 years
Share-based compensation expenses | $	$ 2.8	$ 2.5	$ 7.7	$ 7.2
Total unrecognized compensation expense | $	$ 13.9		$ 13.9
Total unrecognized compensation expense, weighted average period of recognition			1 year 9 months 18 days
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance-based liability awards, measurement period			3 years
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance-based liability awards, measurement period	4 years
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service based restricted stock, shares granted (in shares)			434,553
Share-based compensation expenses | $	$ 1.2	1.1	$ 3.2	3.1
Service And Performancebased Stock Options | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service based restricted stock, vesting period			3 years
Trustee Service And Performancebased Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service based restricted stock, vesting period			1 year
Equity Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expenses | $	$ 1.6	$ 1.5	$ 4.5	$ 4.1
2012 Omnibus Long-Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for grant (in shares)	5,100,000		5,100,000
2019 Omnibus Long-Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance (in shares)	1,000,000		1,000,000
Number of shares terminated (in shares)			992,897
Inducement Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for grant (in shares)	6,000,000		6,000,000
Number of shares available for issuance (in shares)	5,000,000		5,000,000
Number of shares terminated (in shares)			0