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Stockholders' Equity - Amended and Restated Employee Stock Purchase Plan (Details) - $ / shares | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Dec. 26, 2021 | May 31, 2017 | Mar. 28, 2014 | Mar. 27, 2014 | Aug. 31, 1999
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of shares available for future issuance (in shares) |  |  | 1,550,000 | 2,306,256 |
Number of shares issued under the plan (in shares) | 340,000 |  |  |  |
Employee Stock Purchase Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of shares authorized (in shares) |  | 3,000,000 |  |  | 5,200,000
Minimum weekly employment threshold to qualify for ESPP | 20 hours |  |  |  |
Minimum annual employment threshold to qualify for ESPP | 5 months |  |  |  |
Maximum percentage of employee compensation eligible to purchase shares under ESPP (percent) | 15.00% |  |  |  |
Purchase price of common stock as a percent of fair market value (percent) | 85.00% |  |  |  |
Cumulative number of shares issued under ESPP (in shares) | 6,200,000 |  |  |  |
Number of shares available for future issuance (in shares) | 2,000,000 |  |  |  |
Average share price of shares issued under the plan (dollars per share) | $ 17.37 |  |  |  |

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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. + Details
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- Definition The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan. + 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=120381028&loc=d3e5070-113901 + Details
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- Definition Number of equity instruments other than options outstanding, including both vested and non-vested instruments. + 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 (c)(1)(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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=120381028&loc=d3e5070-113901 + Details
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