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Stock Compensation - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense	$ 1.4	$ 1.1	$ 2.8	$ 3.3
Total unrecognized compensation cost related to non-vested share based compensation arrangements	4.8		$ 4.8
Unrecognized compensation cost period for recognition			3 years
Executive Severances [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, award accelerated cost	$ 0.6		$ 0.6
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of expiration, term			10 years
2017 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for grant under plan (in shares)	5,126,950		5,126,950