Stock Based Compensation - Nonvested Stock Option Activity (Details)	9 Months Ended
	Sep. 30, 2020 $ / shares shares
Number of Shares
Nonvested (in shares) | shares	80,723
Weighted Average Exercise Price
Nonvested (in dollars per share) | $ / shares	$ 24.36
Weighted Average Remaining Contractual Life in Years
Nonvested (in years)	6 years 10 months 24 days