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Share-Based Compensation - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Share Based Compensation [Line Items]        
Share-based Compensation Expense $ 2,307,000 $ 10,147,000 $ 8,441,000 $ 17,820,000
Option Award Vesting Period     3 years  
Risk-free Interest Rate     60.00%  
Expected Term (Years)     4 years  
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross     25,250  
Employee Stock Option [Member]        
Share Based Compensation [Line Items]        
Unrecognized Compensation Expense, Options 2,100,000   $ 2,100,000  
Weighted Average Remaining Life, Nonvested Stock Awards     2 years 1 month 6 days  
Restricted Stock LTIP [Member]        
Share Based Compensation [Line Items]        
Option Award Vesting Period     3 years  
Nonvested Stock Awards Granted     17,692  
Unrecognized Share-based Compensation Expense, Nonvested Stock Award 5,100,000   $ 5,100,000  
Weighted Average Remaining Life, Nonvested Stock Awards     1 year 8 months 12 days  
Annual Incentive Plan [Member]        
Share Based Compensation [Line Items]        
Share-based Compensation Expense 0 7,102,000 $ 0 9,931,000
Restricted Stock Units (RSUs) LTIP Plan [Member]        
Share Based Compensation [Line Items]        
Nonvested Stock Awards Granted     2,791  
Unrecognized Share-based Compensation Expense, Nonvested Stock Award 900,000   $ 900,000  
Weighted Average Remaining Life, Nonvested Stock Awards     2 years  
Combination And Other Acquisition-Related [Member]        
Share Based Compensation [Line Items]        
Share-based Compensation Expense 200,000 400,000 $ 700,000 1,200,000
Performance Stock Units [Member]        
Share Based Compensation [Line Items]        
Share-based Compensation Expense 491,000 280,000 $ 1,327,000 560,000
Option Award Vesting Period     3 years  
Vesting Shares Target Lower Percent     0.00%  
Vesting Shares Target Upper Percent     200.00%  
Risk-free Interest Rate     0.29%  
Expected Term (Years)     3 years  
Unrecognized Share-based Compensation Expense, Nonvested Stock Award 3,700,000   $ 3,700,000  
Weighted Average Remaining Life, Nonvested Stock Awards     2 years 1 month 6 days  
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross     23,756  
Defined Contribution Plan [Member]        
Share Based Compensation [Line Items]        
Defined Contribution Plan Employer Matching Contribution Percent Of Match     50.00%  
Defined Contribution Plan, Employer Matching Contribution, Percent     6.00%  
Defined contribution plan employer matching contribution percent maximum     3.00%  
Defined contribution plan employer non-elective nondiscretionary contributions percent     3.00%  
Defined Contribution Plan Employer Discretionary Contribution Amount $ 0 $ 900,000 $ 1,500,000 $ 2,100,000