Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement [Abstract]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

Fair value was determined using a Black-Scholes option pricing model for in-the-money options and a Monte Carlo simulation model for out-of-the-money options based on the following assumptions:

	In-the-money Options	Out-of-the-money Options
Assumptions:
Strike price	$8.47 - $20.73	$23.45 - $28.72
Expected life	1.9 - 3.1 years	0.9 - 2.8 years
Expected volatility	41.06% - 45.77%	38.44% - 47.25%
Risk-free rate	0.26% - 0.50%	0.08% - 0.44%

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 on February 17, 2021 and the period-end fair value of the liability component of the TSR Performance Share Awards:

	Grant Date			September 30, 2021
Fair value per performance share award	$	16.07		$0.94 - $7.76
Assumptions:
Stock price volatility	39.8		%	38.53% - 44.44%
Risk-free rate of return	0.20		%	0.04% - 0.34%