Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement, Noncash Expense [Abstract]

Valuation Assumptions, Options

The fair value of unvested cash settled stock appreciation rights as of September 30, 2021 was estimated using the Black-Scholes option valuation model with the following assumptions:

				Expected	Risk Free
			Expected	Dividend	Interest	Fair Value
Grant Year	Grant Date	Expected Life	Volatility	Yield	Rate	Per Award
2020	1/24/2020	4.6 years	79.96%	0.00%	0.88%	$	3.56
2020	9/14/2020	5.2 years	76.49%	0.00%	1.00%	$	3.45
2020	11/30/2020	5.2 years	76.73%	0.00%	1.00%	$	3.29
2021	1/5/2021	5.3 years	76.22%	0.00%	1.01%	$	3.35