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Equity Compensation Plans - Narrative (Details) - USD ($)		3 Months Ended		6 Months Ended
	Apr. 24, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense		$ 900,000	$ 500,000	$ 1,800,000	$ 1,500,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, term				10 years
Cash received from exercise of stock option (less than)		0		$ 100,000
Intrinsic value of options exercised (less than)		100,000		100,000
Intrinsic value of stock options exercised, tax benefit (less than)		100,000		100,000
Total unrecognized compensation cost		2,700,000		$ 2,700,000
Weighted average expected amortization period				2 years 10 months 24 days
Stock Options \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, vesting period				3 years
Stock Options \| 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		$ 5,300,000		$ 5,300,000
Weighted average expected amortization period				2 years 2 months 12 days
Unvested restricted stock awards (shares)		381,242		381,242
Time-Based Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested restricted stock awards (shares)		220,000		220,000		203,000	159,000
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
Stock Option Plan 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share options and restricted shares authorized (shares)	3,000,000.0
Additional shares authorized under the plan (shares)	19,720