Equity Compensation Plans - Narrative (Details) - USD ($) $ in Millions		3 Months Ended
	Apr. 27, 2012	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense		$ 0.9	$ 1.0
Stock options granted (shares)		110,220	0
Stock options exercised (shares)		3,575	0
Cash received from exercise of stock option		$ 0.1
Intrinsic value of options exercised		0.1
Intrinsic value of stock options exercised, tax benefit		$ 0.1
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, term		10 years
Total unrecognized compensation cost		$ 3.2
Weighted average expected amortization period		3 years 1 month 6 days
Employee Stock Option | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, vesting period		3 years
Employee Stock Option | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, vesting period		4 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost		$ 6.0
Weighted average expected amortization period		3 years 7 months 6 days
Unvested restricted stock awards (shares)		357,664
Time Based Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares granted (shares)		53,713	33,932
Restricted shares vested (shares)		2,702	5,468
Time Based Restricted Stock | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, vesting period		2 years
Time Based Restricted Stock | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, vesting period		4 years
Performance Based Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares granted (shares)		40,335	0
Restricted shares vested (shares)		0	0
Stock Option Plan 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share options and restricted shares authorized (shares)	1,750,000
Additional shares authorized under the plan (shares)	1,200,000