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Employee Benefit Plans - Schedule of Defined Benefit Plans Disclosures (Details) - USD ($) | 12 Months Ended
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Dec. 29, 2023 | Dec. 30, 2022 | Dec. 31, 2021
Swiss Plan |  |  |  |
Change in Projected Benefit Obligation: |  |  |  |
Projected benefit obligation, beginning of period |  | $ 21,463,000 | $ 26,247,000 |
Service cost | [1] | 916,000 | 1,133,000 | $ 1,089,000
Interest cost | [2] | 413,000 | 82,000 | 55,000
Participant contributions |  | 863,000 | 772,000 |
Benefits deposited (paid) |  | (7,101,000) | 208,000 |
Actuarial (gain) loss |  | (5,411,000) | (6,979,000) |
Projected benefit obligation, end of period |  | 21,965,000 | 21,463,000 | 26,247,000
Change in Plan Assets: |  |  |  |
Plan assets at fair value, beginning of period |  | 20,709,000 | 18,809,000 |
Actual return on plan assets |  | 1,922,000 | 12,000 |
Employer contributions |  | 988,000 | 908,000 |
Participant contributions |  | 863,000 | 772,000 |
Benefits deposited (paid) |  | (7,101,000) | 208,000 |
Plan assets at fair value, end of period |  | 17,381,000 | 20,709,000 | 18,809,000
Funded status (pension liability), end of year | [3] | (4,584,000) | (754,000) |
Amount Recognized in Accumulated Other Comprehensive Income (Loss), net of tax: |  |  |  |
Actuarial loss on plan assets |  | (38,000) | (1,354,000) |
Actuarial loss on benefit obligation |  | (5,378,000) | (531,000) |
Actuarial gain (loss) recognized in current year |  | 1,849,000 | 1,847,000 |
Prior service credit |  | 1,122,000 | 1,283,000 |
Effect of curtailments |  | 610,000 | 610,000 |
Accumulated other comprehensive income (loss) |  | (1,835,000) | 1,855,000 |
Accumulated benefit obligation at year end |  | (20,729,000) | (20,784,000) |
Japan Plan |  |  |  |
Change in Projected Benefit Obligation: |  |  |  |
Projected benefit obligation, beginning of period |  | 1,181,000 | 1,320,000 |
Service cost | [1] | 60,000 | 116,000 | 177,000
Interest cost | [2] | 3,000 | 2,000 | 6,000
Benefits deposited (paid) |  | (705,000) | (46,000) |
Actuarial (gain) loss |  | (8,000) | (42,000) |
Foreign exchange adjustment |  | (76,000) | (169,000) |
Projected benefit obligation, end of period |  | 471,000 | 1,181,000 | 1,320,000
Change in Plan Assets: |  |  |  |
Plan assets at fair value, beginning of period |  | 0 | 0 |
Actual return on plan assets |  | 0 | 0 |
Employer contributions |  | 0 | 0 |
Plan assets at fair value, end of period |  | 0 | 0 | 0
Benefits paid |  | 0 | 0 |
Distribution of plan assets |  | 0 | 0 |
Foreign exchange adjustment |  | 0 | 0 |
Funded status (pension liability), end of year | [3] | (471,000) | (1,181,000) |
Amount Recognized in Accumulated Other Comprehensive Income (Loss), net of tax: |  |  |  |
Actuarial gain (loss) recognized in current year |  | (28,000) | (30,000) |
Prior service credit |  | 3,000 | 4,000 |
Settlement |  | (106,000) | 0 | 0
Curtailment |  | (2,000) | 0 | $ 0
Net gain (loss) |  | 189,000 | 210,000 |
Accumulated other comprehensive income (loss) |  | 56,000 | 184,000 |
Accumulated benefit obligation at year end |  | $ (446,000) | $ (1,134,000) |
[1] | Recognized in selling general and administrative expenses on the Consolidated Statements of Income.
[2] | Recognized in other income (expense), net, on the Consolidated Statements of Income.
[3] | The underfunded balance was included in pension liability on the Consolidated Balance Sheets.

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- Definition Defined benefit plan accumulated other comprehensive income net actuarial gains (losses) after tax. + References No definition available. + Details
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- Definition Amount of gain (loss) from a decision to temporarily deviate from the substantive plan, or from a change in benefit obligation from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover or salary scale. + References No definition available. + Details
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- Definition Amount of gain (loss) from a decision to temporarily deviate from the substantive plan, or from a change plan asset value from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover or salary scale. + References No definition available. + Details
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- Definition The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents decrease to plan assets. + References No definition available. + Details
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- Definition The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents decrease to plan assets. + References No definition available. + Details
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- Definition Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-14A Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 10A -Subparagraph (i-k) -SubTopic 10 -Topic 220 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-10A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (j) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 3A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480535/715-20-45-3A Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-18 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h)(5) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(5) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-6 + Details
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-18 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-6 + Details
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Name: | us-gaap_RetirementPlanNameAxis=staa_SwissPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RetirementPlanNameAxis=staa_JapanPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |