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STOCK-BASED COMPENSATION, Fair Value Assumptions (Details) - USD ($)
$ / shares in Units, $ in Thousands
9 Months Ended
May 06, 2019
Sep. 30, 2020
Sep. 30, 2019
Equity Incentive Plan [Abstract]      
Stock option modified from liabilities to equity (in shares) 750,000    
Fair value of stock options after modification $ 11,200    
Amount reclassified from liabilities to equity in conversion 11,500    
Minimum [Member]      
Equity Incentive Plan [Abstract]      
Expiration period of options with accelerated vesting due to modification from liabilities to equity   2 years  
Maximum [Member]      
Equity Incentive Plan [Abstract]      
Expiration period of options with accelerated vesting due to modification from liabilities to equity   4 years  
Stock Appreciation Rights (SARs) [Member]      
Equity Incentive Plan [Abstract]      
Fair value of share-based equity awards at conversion date $ 11,500    
Stock Option [Member]      
Summary of Assumptions Used to Calculate Fair Value of Awards [Abstract]      
Expected volatility   27.46%  
Expected dividend yield   0.70% 0.70%
Expected term   6 years 2 months 12 days  
Risk-free interest rate   1.44%  
Weighted average grant date fair value (in dollars per share)   $ 5.68 $ 8.01
Stock Option [Member] | Minimum [Member]      
Summary of Assumptions Used to Calculate Fair Value of Awards [Abstract]      
Expected volatility     24.88%
Expected term     6 months
Risk-free interest rate     1.46%
Stock Option [Member] | Maximum [Member]      
Summary of Assumptions Used to Calculate Fair Value of Awards [Abstract]      
Expected volatility     31.54%
Expected term     7 years
Risk-free interest rate     2.63%
2019 Equity Incentive Plan [Member] | Stock Appreciation Rights (SARs) [Member]      
Equity Incentive Plan [Abstract]      
Number of outstanding shares converted (in shares) 1,401,000    
2019 Equity Incentive Plan [Member] | Stock Option [Member]      
Equity Incentive Plan [Abstract]      
Intrinsic value of options exercised   $ 185  
Options exercised (in shares)   27,851 0