Stock-Based Compensation - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized (in shares)	3,636,000
Expected dividend	0.00%
Granted (in shares)	723,951	340,558
Award vesting period	4 years
Intrinsic value for restricted stock outstanding			$ 189
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividend	0.00%	0.00%
Granted (in shares)	723,951	340,558
Unrecognized compensation cost	$ 4,100
Weighted average period	2 years 8 months 6 days
Compensation expense	$ 1,600	$ 800
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 6,200
Weighted average period	2 years 8 months 12 days
Intrinsic value for restricted stock outstanding	$ 14,700	5,200
Compensation expense	$ 2,600	$ 1,500

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

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