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Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2020
Share-based Payment Arrangement [Abstract]  
Assumptions to Determine the Grant Date Fair Value of the Equity Component and the Period-End Fair Value of the Liability
The following assumptions were used to determine the grant date fair value of the equity component (February 19, 2020) and the period-end fair value of the liability component of the TSR Performance Share Awards:
 Grant DateSeptember 30,
2020
Fair value per performance share award $13.79 
$13.28 - $17.30
Assumptions:   
     Stock price volatility29.5 %
36.8% - 48.4%
     Risk free rate of return1.39 %
0.10% - 0.14%