XML 42 R45.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Commitments and Contingencies (Additional Information) (Detail) (USD $) | 1 Months Ended | 3 Months Ended
--- | --- | ---
Dec. 31, 2011 sqft | Sep. 30, 2012
Property Subject to or Available for Operating Lease [Line Items] |  |
Number of distributors |  | 2
Maximum civil monetary penalty |  | 250,000
Expense related to export compliance matter |  | 1,600,000
San Jose, California [Member] |  |
Property Subject to or Available for Operating Lease [Line Items] |  |
Noncancelable operating leases expiration period |  | Through 2017
Space for office and research and development | 64,512 |
Rent expense under operating leases | $ 4,900,000 |
Lease term initiation | Apr. 01, 2012 |
Lease term expiration | Jun. 30, 2017 |

X
- Definition Civil penalty for violations in export compliance matters maximum. + References No definition available. + Details
Name: | ubnt_CivilPenaltyForViolationsInExportComplianceMattersMaximum
Namespace Prefix: | ubnt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Export compliance matter expenses. + References No definition available. + Details
Name: | ubnt_ExportComplianceMatterExpenses
Namespace Prefix: | ubnt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Noncancelable operating leases expiration period. + References No definition available. + Details
Name: | ubnt_NoncancelableOperatingLeasesExpirationPeriod
Namespace Prefix: | ubnt_
Data Type: | us-types:durationStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of distributors. + References No definition available. + Details
Name: | ubnt_NumberOfDistributors
Namespace Prefix: | ubnt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Operating leases initiation date. + References No definition available. + Details
Name: | ubnt_OperatingLeasesInitiationDate
Namespace Prefix: | ubnt_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Operating leases rental area. + References No definition available. + Details
Name: | ubnt_OperatingLeasesRentalArea
Namespace Prefix: | ubnt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Date which lease or group of leases is set to expire, in CCYY-MM-DD format. + References No definition available. + Details
Name: | us-gaap_LeaseExpirationDate1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
Name: | us-gaap_OperatingLeasesRentExpenseNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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