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Share-Based Compensation - Employee stock purchase plan (Details) - Employee stock purchase plan	6 Months Ended
	Jun. 30, 2021 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock available for issuance	230,000
Percentage of common stock purchase price	15.00%
Discount percentage on marker price	85.00%
Shares issued	0

X

- Definition

Discount rate from fair value on offering date that participants pay for shares.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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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.

+ References

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- Definition

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

+ References

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-Topic 718
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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

+ References

No definition available.

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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Section 50
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