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Stock Based and Other Management Compensation - Narratives (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	342,574
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	7 years 10 months 24 days	2 years 10 months 24 days
Granted	308,875	229,250	979,790
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 3.11
Granted	$ 8.99	$ 5.13	$ 6.08
Allocated Share-based Compensation Expense	$ 2,665	$ 2,146	$ 1,151
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	303,583
Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent	$ 8,900	$ 6,900
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 500
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	308,875,000	229,250,000	979,790,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	5 years
Deferred and Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	392,269
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options	$ 7,900	$ 7,600
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	3 years 4 months 24 days	3 years 9 months 18 days
Granted	$ 8.84
Deferred and Restricted Stock Units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	1 year
Deferred and Restricted Stock Units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	5 years
Omnibus Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	15,000,000
Selling, General and Administrative Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$ 2,300	$ 1,900	$ 1,000
Director [Member] | Deferred and Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	392,269
Director [Member] | Deferred and Restricted Stock Units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	$ 6.48
Director [Member] | Deferred and Restricted Stock Units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	$ 10.66
Board of Directors [Member] | Deferred and Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	58,207

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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