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v2.4.1.9

Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 9 Months Ended |
--- | --- | ---
Jan. 23, 2015 | Apr. 25, 2014
Commitments and Contingencies Disclosure [Line Items] |  |
Future annual minimum lease payments | 203.2 us-gaap_OperatingLeasesFutureMinimumPaymentsDue |
Accrued purchase commitments with contract manufacturers | 9.4 ntap_AccruedLiabilityForQuantitiesInExcessOfFutureDemandForecastsWithContractManufacturers | 11.5 ntap_AccruedLiabilityForQuantitiesInExcessOfFutureDemandForecastsWithContractManufacturers
Maximum |  |
Commitments and Contingencies Disclosure [Line Items] |  |
Terms of recourse leases | 3 years |
Software Products |  |
Commitments and Contingencies Disclosure [Line Items] |  |
Product warranty term | 90 days |
Hardware Products |  |
Commitments and Contingencies Disclosure [Line Items] |  |
Product warranty term | 3 years |
Contract Manufacturers |  |
Commitments and Contingencies Disclosure [Line Items] |  |
Purchase commitments | 274.6 us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = ntap_ContractManufacturersMember |
Capital Purchase Commitments |  |
Commitments and Contingencies Disclosure [Line Items] |  |
Purchase commitments | 68.8 us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = us-gaap_CapitalAdditionsMember |
Other Purchase Commitments |  |
Commitments and Contingencies Disclosure [Line Items] |  |
Purchase commitments | 192.2 us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = us-gaap_PurchaseCommitmentMember |

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- Definition Accrued liability for quantities in excess of future demand forecasts with contract manufacturers. + References No definition available. + Details
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- Definition The approximate term of software and hardware product warranty, respectively. + References No definition available. + Details
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- Definition The approximate maximum term of recourse financing arrangements. + References No definition available. + Details
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- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 + Details
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- Definition Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.25) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 25 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 17 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.17) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a)(19)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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