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Employee Benefits and Deferred Compensation - Additional Information (Detail) | 12 Months Ended
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Apr. 29, 2022 USD ($)
Defined Contribution Plan Disclosure [Line Items] |
Employee 401(k) Plan, Description | An employee receives the full 4% match when he/she contributes at least 6% of his/her eligible earnings, up to a maximum calendar year matching contribution of $6,000.
Employee contribution percentage | 6.00%
Maximum amount of matching contribution | $ 6,000
Contribution Match First 2% Eligible Earnings Employee |
Defined Contribution Plan Disclosure [Line Items] |
Percentage of employee contributions matched | 100.00%
Percentage of earnings on employee contributions matched | 2.00%
Contribution Match Next 4% Eligible Earnings Employee |
Defined Contribution Plan Disclosure [Line Items] |
Percentage of employee contributions matched | 50.00%
Percentage of earnings on employee contributions matched | 4.00%

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- Definition Employee contribution percentage. + References No definition available. + Details
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Namespace Prefix: | ntap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Maximum Amount Of Matching Contributions Per Employee + References No definition available. + Details
Name: | ntap_MaximumAmountOfMatchingContributionsPerEmployee
Namespace Prefix: | ntap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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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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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage employer matches of the employee's percentage contribution matched. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Description of defined contribution pension and other postretirement plans. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |