Stock-based Compensation - 2015 Stock Option and Incentive Plan (Details) - 2015 Stock Option and Incentive Plan - shares		3 Months Ended
Jan. 01, 2020	Mar. 31, 2020	Apr. 08, 2015
Stock-based compensation
Initial shares of common stock authorized for issuance of stock awards (in shares)			1,460,084
Increase in number of shares available for grant (as a percent)		4.00%
Increase in number of shares available for grant	1,970,888
Number of shares available for grant		1,623,278

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

No definition available.

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- References

No definition available.

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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