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Share-Based Compensation - Summary of Information about Restricted Stock Grants Outstanding (Details) - Restricted Stock - USD ($)
shares in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Shares 149 4    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 477 760 403 761
October 2017        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Shares 303      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 72      
Unearned compensation $ 392,600      
Remaining Period to Vesting (in months) 7 months      
October 2018        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Shares 382      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 188      
Unearned compensation $ 998,200      
Remaining Period to Vesting (in months) 19 months      
May 2019        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Shares 71      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 59      
Unearned compensation $ 37,500      
Remaining Period to Vesting (in months) 1 month      
October 2019        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Shares 12      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 12      
Unearned compensation $ 70,400      
Remaining Period to Vesting (in months) 31 months      
January 2020        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Shares 149      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 146      
Unearned compensation $ 758,700      
Remaining Period to Vesting (in months) 31 months      
Vesting period 1 | October 2017        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Restricted stock vesting installment (as a percent) 33.33%      
Vesting period 1 | October 2018        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Restricted stock vesting installment (as a percent) 33.33%      
Vesting period 1 | October 2019        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Restricted stock vesting installment (as a percent) 33.33%      
Vesting period 1 | January 2020        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Restricted stock vesting installment (as a percent) 33.33%      
Vesting period 2 | October 2017        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Restricted stock vesting installment (as a percent) 33.33%      
Vesting period 2 | October 2018        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Restricted stock vesting installment (as a percent) 33.33%      
Vesting period 2 | October 2019        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Restricted stock vesting installment (as a percent) 33.33%      
Vesting period 2 | January 2020        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Restricted stock vesting installment (as a percent) 33.33%      
Vesting period 3 | October 2017        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Restricted stock vesting installment (as a percent) 33.33%      
Vesting period 3 | October 2018        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Restricted stock vesting installment (as a percent) 33.33%      
Vesting period 3 | October 2019        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Restricted stock vesting installment (as a percent) 33.33%      
Vesting period 3 | January 2020        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Restricted stock vesting installment (as a percent) 33.33%