Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of additional shares authorized for issuance under an established share-based compensation plan.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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Stock-Based Compensation - Equity Incentive Plans, Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jan. 31, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Jul. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based expense		$ 4,114	$ 1,986	$ 11,040	$ 5,667
Capitalized Computer Software, Net		$ 200		200
Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option to purchase shares of common stock, granted (in shares)						1,860,000
Share-based expense				$ 900
2018 EIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in number of shares available for issuance (in shares)	5,322,716