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Represents amount of a holdback payment made.

+ References

No definition available.

+ Details

Name:	jdsu_BusinessAcquisitionCostOfAcquiredEntityPaymentsOfWorkingCapitalAdjustmentAndHoldbackPayment
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Data Type:	xbrli:monetaryItemType
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- Definition

Represents the working capital adjustment and holdback payment which is due subsequent to the closing date in business combination.

+ References

No definition available.

+ Details

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Namespace Prefix:	jdsu_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Represents the net holdback payment to be released in second tranche, which is due subsequent to the closing date in business combination.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Represents the maximum number of days after the closing date period of the transaction that the holdback payment will be released.

+ References

No definition available.

+ Details

Name:	jdsu_MaximumPeriodForReleaseOfHoldbackPaymentsAfterClosingDatePeriod
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Data Type:	xbrli:durationItemType
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- Definition

Represents the number of years after the closing date period of the transaction that the final holdback payment will be released.

+ References

No definition available.

+ Details

Name:	jdsu_PeriodForReleaseOfFinalHoldbackPaymentsAfterClosingDatePeriod
Namespace Prefix:	jdsu_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of months after the closing date period of the transaction that the holdback payment will be released.

+ References

No definition available.

+ Details

Name:	jdsu_PeriodForReleaseOfHoldbackPaymentsAfterClosingDatePeriod
Namespace Prefix:	jdsu_
Data Type:	xbrli:durationItemType
Balance Type:	na
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- Details

Name:	us-gaap_BusinessAcquisitionLineItems
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- 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

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:
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- Details

Name:	us-gaap_BusinessAcquisitionAxis=jdsu_TrendiumIncMember
Namespace Prefix:
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Period Type:

Mergers and Acquisitions (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended	3 Months Ended	0 Months Ended		1 Months Ended
	Dec. 10, 2013	Dec. 27, 2014	Sep. 27, 2014	Jan. 06, 2014	Feb. 05, 2015
Trendium
Acquisitions
Purchase price paid in cash	$ 26.1
Working capital adjustment and holdback payment	2.5
Additional business acquisition information
Holdback payment		2.5
Maximum period for the holdback payments to be released		1 year
Network Instruments
Acquisitions
Purchase price paid in cash				208.5
Working capital adjustment and holdback payment				20.0
Additional business acquisition information
Holdback payment			9.8
Period for release of holdback payments after closing date			6 months
Network Instruments \| Subsequent Events
Additional business acquisition information
Holdback payments, minus any deductions for actual or pending claims to be paid in second tranche					$ 9.9
Period for release of final holdback payment					1 year