v3.19.1

Nature of Business and Basis of Presentation - Additional Information (Details) $ / shares in Units, $ in Thousands		1 Months Ended	12 Months Ended
	Aug. 15, 2018 $ / shares	Dec. 31, 2017 USD ($) $ / shares	Dec. 31, 2018 $ / shares	Dec. 31, 2017 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.01	$ 0.01	$ 0.01	$ 0.01
Change in enacted tax rate, amount		$ 1,400
Tax Cuts and Jobs Act of 2017, change in tax rate, income tax expense				$ 1,400
Tax Cuts and Jobs Act Of 2017, change in tax rate, deferred tax asset, income tax expense		$ 40
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock split, conversion ratio	4
Leasehold improvements
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Useful Lives			10 years

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Face amount or stated value per share of common stock.

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