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Stock-Based Incentive Plans Liability Classified Awards - Cash-settled Restricted Stock Units (Details) - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Beginning of period (shares) 53,766    
Restricted stock, granted (in shares) 20,989    
Restricted stock, released (in shares) (462)    
Forfeited (shares) (10,441)    
End of period (shares) 63,852 53,766  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]      
Weighted average grant date fair value, beginning balance (in dollars per share) $ 79.07    
Weighted average fair value of restricted stock units granted (in dollars per share) 83.58 $ 53.72 $ 10.19
Weighted average fair value of restricted stock units released (in dollars per share) 83.18    
Weighted average grant date fair value, forfeited (in dollars per share) 88.70    
Weighted average grant date fair value, ending balance (in dollars per share) $ 85.63 $ 79.07