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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Product Warranties (Details)	12 Months Ended
	Jun. 30, 2014
Accounting Policies [Abstract]
Warranty period	1 year
Period of warranty effective from date of purchase	12 months

X

- Definition

Standard Period Of Warranty, Effective From Date Of Purchase

+ References

No definition available.

+ Details

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Namespace Prefix:	ubnt_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Standard product warranty period.

+ References

No definition available.

+ Details

Name:	ubnt_StandardProductWarrantyPeriod
Namespace Prefix:	ubnt_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

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