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Share-Based Employee Compensation - Additional Information (Details)
3 Months Ended
Mar. 08, 2021
USD ($)
$ / shares
shares
Mar. 31, 2021
USD ($)
plan
$ / shares
shares
Mar. 31, 2020
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shareholder approved stock plans | plan   3  
Cost (reversal) of employee share-based compensation included in income, before income tax   $ 4,612,000 $ 1,861,000
Share-based payment arrangement, nonvested award, option, cost not yet recognized, amount   5,122,000  
Replacement Awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options converted in connection with acquisition (in shares) | shares 3,168,000    
Stock options converted in connection with acquisition $ 5,343,000    
Restricted stock awards converted in connection with acquisition (in shares) | shares 188,000    
Restricted stock awards converted in connection with acquisition $ 4,794,000    
Share price | $ / shares $ 29.52    
Risk free interest rate 0.60%    
Expected term 3 years 8 months 12 days    
Expected volatility rate 55.10%    
Cost (reversal) of employee share-based compensation included in income, before income tax   $ 406,000  
Replacement Awards | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period   1 year  
Replacement Awards | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period   3 years  
Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based payment arrangement, nonvested award, excluding option, cost not yet recognized, amount   $ 4,608,000  
Number of years compensation expense to be recognized over   1 year 10 months 24 days  
Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of years compensation expense to be recognized over   1 year 10 months 24 days  
Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of years compensation expense to be recognized over   2 years 4 months 24 days  
Number of stock units granted (in shares) | shares   987,000 987,000
Stock units, weighted average grant-date fair value (in dollars per share) | $ / shares   $ 29.61 $ 19.67
Compensation expense related to restricted stocks   $ 2,175,000 $ 1,615,000
Total unrecognized compensation expense related to non-vested shares granted   $ 46,360,000  
Restricted Stock Units (RSUs) | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award requisite service period   1 year  
Restricted Stock Units (RSUs) | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award requisite service period   5 years  
Restricted Stock Units, Inducement Awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of stock units granted (in shares) | shares   774,000 268,000
Performance Shares      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Cost (reversal) of employee share-based compensation included in income, before income tax   $ 2,028,000 $ 245,000
Number of years compensation expense to be recognized over     2 years 8 months 12 days
Number of stock units granted (in shares) | shares   1,346,000 125,000
Stock units, weighted average grant-date fair value (in dollars per share) | $ / shares   $ 29.58 $ 19.66
Total unrecognized compensation expense related to non-vested shares granted   $ 65,237,000  
Performance Shares | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period   3 years  
Award requisite service period   1 year  
Performance Shares | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period   5 years  
Award requisite service period   5 years  
Performance Shares, Inducement Awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of stock units granted (in shares) | shares   1,149,000