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Stock Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended		3 Months Ended		9 Months Ended
	Apr. 30, 2019	Mar. 31, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense			$ 1.1	$ 1.2	$ 3.3	$ 3.5
Total unrecognized compensation cost related to non-vested share based compensation arrangements			$ 6.4		$ 6.4
Unrecognized compensation cost period for recognition					3 years
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of expiration, term					10 years
Options Granted		235,474
Options, Granted, Average exercise Price		$ 18.54
Options Granted, Average Fair Value price		$ 5.78
Time Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Granted During Period	33,152	77,810	10,296
Granted, Average Granted Date Fair Value	$ 18.10	$ 18.54	$ 16.61
Performance-Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Granted During Period		101,500
Granted, Average Granted Date Fair Value		$ 18.54
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