XML 36 R37.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Business Combinations - Additional Information (Detail) (Fiscal 2015 Acquisitions, USD $) In Millions, unless otherwise specified | 0 Months Ended
--- | ---
Oct. 27, 2014
SteelStore Product Line |
Business Acquisition [Line Items] |
Business acquisition cash paid | $ 79.1 us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = ntap_Fiscal2015AcquisitionsMember / dei_LegalEntityAxis = ntap_SteelStoreProductLineMember
Privately Held Software Developer |
Business Acquisition [Line Items] |
Business acquisition cash paid | $ 5.5 us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = ntap_Fiscal2015AcquisitionsMember / dei_LegalEntityAxis = ntap_PrivatelyHeldSoftwareDeveloperMember

X
- Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireBusinessesGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=ntap_PrivatelyHeldSoftwareDeveloperMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=ntap_SteelStoreProductLineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |