XML 45 R36.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Balance Sheet Components - Additional Information (Details) (USD $) | 3 Months Ended |
--- | --- | ---
Apr. 30, 2015 | Apr. 30, 2014 | Jan. 31, 2015
Property Plant And Equipment [Line Items] |  |  |
Accumulated depreciation of property and equipment acquired under capital lease | $ 355,000 us-gaap_CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation |  | $ 140,000 us-gaap_CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
Depreciation expense | 8,000,000 us-gaap_Depreciation | 5,200,000 us-gaap_Depreciation |
Amount of interest capitalized to property and equipment | 6,000 us-gaap_AccumulatedCapitalizedInterestCosts | 89,000 us-gaap_AccumulatedCapitalizedInterestCosts |
Servers |  |  |
Property Plant And Equipment [Line Items] |  |  |
Gross amount of property and equipment acquired under capital lease | 2,400,000 us-gaap_CapitalLeasedAssetsGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = box_ServersMember |  | 1,900,000 us-gaap_CapitalLeasedAssetsGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = box_ServersMember
Depreciation expense | 214,000 us-gaap_Depreciation / us-gaap_PropertyPlantAndEquipmentByTypeAxis = box_ServersMember | 0 us-gaap_Depreciation / us-gaap_PropertyPlantAndEquipmentByTypeAxis = box_ServersMember |
Construction in Progress |  |  |
Property Plant And Equipment [Line Items] |  |  |
Gross amount of property and equipment acquired under capital lease | $ 1,300,000 us-gaap_CapitalLeasedAssetsGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_ConstructionInProgressMember |  | $ 69,000 us-gaap_CapitalLeasedAssetsGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_ConstructionInProgressMember

X
- Definition Amount of accumulated interest costs capitalized as part of property, plant and equipment cost basis. + References No definition available. + Details
Name: | us-gaap_AccumulatedCapitalizedInterestCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45014-112735 + Details
Name: | us-gaap_CapitalLeasedAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The total charge for the use of long-lived depreciable assets subject to a lease meeting the criteria for capitalization. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45014-112735 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 2) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 + Details
Name: | us-gaap_CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
Name: | us-gaap_Depreciation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=box_ServersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_ConstructionInProgressMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |