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Stock-Based Compensation - Schedule of Stock Option Activity (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Shares of Common Stock Attributable to Options    
Outstanding at beginning of period (in shares) 400,000  
Granted (in shares) 0  
Exercised (in shares) (100,000)  
Forfeited or expired (in shares) 0  
Outstanding at end of period (in shares) 300,000 400,000
Exercisable (in shares) 0  
Weighted-Average Exercise Price of Options    
Outstanding at beginning of period (usd per share) $ 31.61  
Granted (usd per share) 0  
Exercised (usd per share) 31.61  
Forfeited or expired (usd per share) 0  
Outstanding at end of period (usd per share) 31.61 $ 31.61
Exercisable (usd per share) $ 0  
Stock Option Activity, Additional Disclosures    
Weighted-average remaining contractual term of the outstanding options 8 years 9 months 18 days  
Weighted-average remaining contractual term of the exercisable options 0 years  
Aggregate intrinsic value of outstanding options $ 0  
Aggregate intrinsic value of exercisable options $ 0  
Weighted-average grant date fair value per stock option (usd per share) $ 10.21 10.21
Aggregate intrinsic value on exercise (usd per share) $ 0.10 $ 0
Cash received upon exercise $ 1,900,000 $ 0