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Equity Incentive Plan (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended
Feb. 29, 2024
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Mar. 31, 2021
Equity Incentive Plan          
Maximum number of common shares available for issuance (in shares)   6,828,527      
Other Disclosures          
Shared-based compensation arrangement by share based payment award, absolute total shareholder return resulting in payout percentage cap   15.00%      
Shared-based compensation arrangement by share based payment award, payout percentage cap   115.00%      
Shared-based compensation arrangement by share based payment award, payout percentage reduction   25.00%      
Shared-based compensation arrangement by share based payment award, absolute total shareholder return resulting in payout percentage reduction   0.0      
Restricted share awards          
Summary of non-vested shares/units          
Unvested at the beginning of the period (in shares)   2,305,303      
Granted (in shares)   720,317      
Vested (in shares)   (523,076)      
Forfeited (in shares)   (379)      
Unvested at the end of the period (in shares)   2,502,165      
Weighted Average Grant Date Fair Value          
Unvested at the beginning of the period (in dollars per share)   $ 13.52      
Granted (in dollars per share)   11.70      
Vested (in dollars per share)   12.82      
Forfeited (in dollars per share)   9.88      
Unvested at the end of the period (in dollars per share)   $ 13.14      
Other Disclosures          
Share-based compensation expense   $ 4.2 $ 3.6    
Total unrecognized compensation costs   $ 17.2      
Weighted-average period of recognition of unrecognized share-based compensation expense   2 years 1 month 6 days      
Total fair value of shares vested   $ 6.1 4.4    
Performance Units          
Other Disclosures          
Share-based compensation expense   2.3 $ 2.1    
Total unrecognized compensation costs   $ 18.9      
Weighted-average period of recognition of unrecognized share-based compensation expense   2 years 3 months 18 days      
2021 Performance Shares          
Summary of non-vested shares/units          
Granted (in shares) 253,000       431,151
Other Disclosures          
Total fair value of shares vested   $ 3.0      
Performance-based vesting period   3 years      
Percentage of grant date fair value to be recognized over three years   100.00%      
Employee service share based compensation cost period of recognition   3 years      
Share-Based Compensation Arrangement by Share-Based Payment Award, Contingent on Absolute Total Shareholder Return   25.00%      
Share-Based Compensation Arrangement by Share-Based Payment Award, Contingent on Relative Total Shareholder Return   75.00%      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Intrinsic Value, Amount Per Share         $ 20.90
Fair value assumptions, risk free interest rate         0.23%
Fair value assumptions, expected volatility rate         69.47%
2022 Performance Shares          
Summary of non-vested shares/units          
Granted (in shares)       407,024  
Other Disclosures          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Intrinsic Value, Amount Per Share       $ 21.96  
Fair value assumptions, risk free interest rate       1.70%  
Fair value assumptions, expected volatility rate       70.15%  
2021 Share Repurchase Program          
Other Disclosures          
Common shares available for future grant (in shares)   1,765,411      
2023 Performance Shares          
Summary of non-vested shares/units          
Granted (in shares)     574,846    
Other Disclosures          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Intrinsic Value, Amount Per Share     $ 16.90    
Fair value assumptions, risk free interest rate     4.33%    
Fair value assumptions, expected volatility rate     66.70%    
2024 Performance Shares [Domain]          
Summary of non-vested shares/units          
Granted (in shares)   703,325      
Other Disclosures          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Intrinsic Value, Amount Per Share   $ 15.13      
Fair value assumptions, risk free interest rate   4.43%      
Fair value assumptions, expected volatility rate   35.60%      
2021 Equity Incentive Plan          
Other Disclosures          
Share-based compensation arrangement, by share based payment award, vesting rights percentage immediately   100.00%      
Minimum | 2021 Performance Shares          
Other Disclosures          
Percentage of performance units that will convert into restricted shares   0.00%      
Shared-Based Compensation Arrangement by Share-Based Payment Award, Conversion Percentage Range         0.00%
Minimum | 2022 Performance Shares          
Other Disclosures          
Shared-Based Compensation Arrangement by Share-Based Payment Award, Conversion Percentage Range       0.00%  
Minimum | 2023 Performance Shares          
Other Disclosures          
Shared-Based Compensation Arrangement by Share-Based Payment Award, Conversion Percentage Range     0.00%    
Minimum | 2024 Performance Shares [Domain]          
Other Disclosures          
Shared-Based Compensation Arrangement by Share-Based Payment Award, Conversion Percentage Range   0.00%      
Maximum | 2021 Performance Shares          
Other Disclosures          
Percentage of performance units that will convert into restricted shares   200.00%      
Shared-Based Compensation Arrangement by Share-Based Payment Award, Conversion Percentage Range         200.00%
Maximum | 2022 Performance Shares          
Other Disclosures          
Shared-Based Compensation Arrangement by Share-Based Payment Award, Conversion Percentage Range       200.00%  
Maximum | 2023 Performance Shares          
Other Disclosures          
Shared-Based Compensation Arrangement by Share-Based Payment Award, Conversion Percentage Range     200.00%    
Maximum | 2024 Performance Shares [Domain]          
Other Disclosures          
Shared-Based Compensation Arrangement by Share-Based Payment Award, Conversion Percentage Range   200.00%