Number of offering periods under the employee stock purchase plan.

No definition available.

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- Definition

The period over which the employees authorize to withhold the basic pay under share based compensation arrangement

+ References

No definition available.

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- Definition

The percentage of the market value at which employee stock purchase plan participants are entitled to purchase stock under the plan.

+ References

No definition available.

+ Details

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- Definition

Threshold percentage of share available to grant.

+ References

No definition available.

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- Definition

Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.

+ References

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- Definition

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.

+ References

No definition available.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

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Stock-based Compensation - Employee Stock Purchase Plan (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) period shares	Dec. 31, 2019 USD ($) shares	Dec. 31, 2018 shares
Stock-based compensation
Stock-based compensation expense \| $	$ 13,966	$ 10,049
2017 Employee Stock Purchase Plan
Stock-based compensation
Shares Authorized			223,341
Employee basic pay holding period	6 months
Number of offering periods \| period	2
Percentage of market value at which employee may purchase stock	85.00%	85.00%
Issuance under employee stock purchase plan (in shares)	314,397	123,664
2017 Employee Stock Purchase Plan \| Maximum
Stock-based compensation
Shares Authorized	893,441
Threshold percentage of share available to grant	1.00%