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Share-Based Compensation - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Share Based Compensation [Abstract]        
Option Award Vesting Period     3 years  
Share Based Compensation [Line Items]        
Share-based Compensation Expense in Period, Stock Option Awards $ 2,991 $ 660 $ 7,673 $ 1,672
Allocated Share-based Compensation Expense 2,991 660 $ 7,673 1,672
Defined Contribution Plan Employer Matching Contribution Percent     6.00%  
Defined Contribution Plan Employer Matching Contribution Percent Maximum     3.00%  
Defined Contribution Plan Employer Matching Contribution Percent Of Match     50.00%  
Defined Contribution Plan Employer Discretionary Contribution Amount     $ 1,200  
Stock Options [Member]        
Share Based Compensation [Line Items]        
Unrecognized Share-based Compensation Expense, Nonvested Stock Award 2,200   $ 2,200  
Weighted Average Remaining Life, Nonvested Stock Awards     2 years 2 months 12 days  
Restricted Stock LTIP Plan [Member]        
Share Based Compensation [Line Items]        
Unrecognized Share-based Compensation Expense, Nonvested Stock Award 6,700   $ 6,700  
Weighted Average Remaining Life, Nonvested Stock Awards     1 year 10 months 24 days  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     27,137  
Restricted Stock Units (RSUs) LTIP Plan [Member]        
Share Based Compensation [Line Items]        
Unrecognized Share-based Compensation Expense, Nonvested Stock Award 1,100   $ 1,100  
Weighted Average Remaining Life, Nonvested Stock Awards     2 years 3 months 18 days  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     5,804  
Annual Incentive Plan [Member]        
Share Based Compensation [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     39,000  
Share-based Compensation Expense in Period, Stock Option Awards (117) 0 $ 2,829 0
Allocated Share-based Compensation Expense (117) 0 2,829 0
Combination And Other Acquisition Related [Member]        
Share Based Compensation [Line Items]        
Share-based Compensation Expense in Period, Stock Option Awards 300   800 100
Allocated Share-based Compensation Expense 300   800 100
Performance Incentive Stock Units [Member]        
Share Based Compensation [Line Items]        
Unrecognized Share-based Compensation Expense, Nonvested Stock Award 3,100   $ 3,100  
Weighted Average Remaining Life, Nonvested Stock Awards     2 years 8 months 12 days  
Share-based Compensation Expense in Period, Stock Option Awards 280 0 $ 280 0
Allocated Share-based Compensation Expense $ 280 $ 0 $ 280 $ 0