Adjusted LIBOR Rate, Variable Rate, Period End Month One

No definition available.

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- Definition

Adjusted LIBOR Rate, Variable Rate, Period End Month Three

+ References

No definition available.

+ Details

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- Definition

Adjusted LIBOR Rate, Variable Rate, Period End Month Two

+ References

No definition available.

+ Details

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- Definition

Aggregate total worldwide consolidated cash and short-term investments

+ References

No definition available.

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- Definition

Line of credit accrued cancellation penalties

+ References

No definition available.

+ Details

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- Definition

Line of Credit, Covenant, Consolidated Cash and Marketable Securities Minimum

+ References

No definition available.

+ Details

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- Definition

Line of Credit Covenant, EBITDA, Minimum

+ References

No definition available.

+ Details

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- Definition

Line of Credit facility, Cancelled Amount

+ References

No definition available.

+ Details

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Balance Type:	credit
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- Definition

Line of Credit Facility, Threshold Consecutive Business Days

+ References

No definition available.

+ Details

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- Definition

Percentage of Equity Interest of Foreign Subsidiary Pledged as Collateral for Letter of Credit

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

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- Definition

Amount of the fee that accompanies borrowing money under the debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Details

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- Definition

Discussion of whether the borrowings under the credit facility are secured or unsecured and, if secured, a description of collateral (for example, accounts receivable less than 120 days old, finished goods inventory).

+ References

+ Details

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- Definition

Amount of the fee for available but unused credit capacity under the credit facility.

+ 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 210.5-02.19(b),22(b))

-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 19, 22

-Article 5

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- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

+ Details

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- Definition

Date the credit facility first became available, in CCYY-MM-DD format.

+ References

+ Details

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(f))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph f

-Article 4

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585

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Credit Facilities - Additional Information (Detail) (USD $)	12 Months Ended	0 Months Ended
	Dec. 31, 2014	Dec. 19, 2014	Dec. 22, 2014
Debt Instrument [Line Items]
Line of credit accrued cancellation penalties	0
Standby letters of credit [Member] \| JPMorgan Chase [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity			10,000,000
Line of Credit Facility, Commitment Fee Percentage	1.75%
Revolving Credit Facility [Member] \| JPMorgan Chase [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity			20,000,000
Borrowings under bank line of credit facility	0
Credit facility collateral	Obligations under the Credit Agreement are secured only by a pledge of 66 2/3% of the Company’s equity interests in its foreign subsidiary, Harmonic International AG. Additionally, to the extent that the Company in the future forms any direct or indirect, domestic, material subsidiaries, those subsidiaries will be required to provide a guaranty of the Company’s obligations under the Credit Agreement.
Line of Credit Facility, Remaining Borrowing Capacity	20,000,000
Line of Credit Facility, Threshold Consecutive Business Days	5 days
Debt Instrument, Fee Amount	50,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.25%
Percentage of Equity Interest Pledged as Collateral for Letter of Credit	66.67%
Line of Credit, Covenant, Consolidated Cash and Marketable Securities Minimum	35,000,000
Line of Credit Covenant, EBITDA, Minimum	20,000,000
Revolving Credit Facility [Member] \| SVB [Member]
Debt Instrument [Line Items]
Bank line of credit facility, maturity date		Dec. 31, 2014
Line of Credit facility, Cancelled Amount	10,000,000
Line of Credit Facility, Initiation Date		Aug. 11, 2011
Revolving Credit Facility [Member] \| Minimum [Member] \| JPMorgan Chase [Member]
Debt Instrument [Line Items]
Consolidated Cash Threshold	30,000,000
Commercial Letters of Credit [Member] \| Maximum [Member] \| JPMorgan Chase [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage	0.75%
Line of Credit Facility, Commitment Fee Amount	100.0
London Interbank Offered Rate (LIBOR) [Member] \| Revolving Credit Facility [Member] \| JPMorgan Chase [Member]
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis	LIBOR
Adjusted LIBOR Rate, Variable Rate, Period End Month One	1 month
Adjusted LIBOR Rate, Variable Rate, Period End Month Two	2 months
Adjusted LIBOR Rate, Variable Rate, Period End Month Three	3 months
London Interbank Offered Rate (LIBOR) [Member] \| Revolving Credit Facility [Member] \| Minimum [Member] \| JPMorgan Chase [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.50%
Prime Rate [Member] \| Revolving Credit Facility [Member] \| JPMorgan Chase [Member]
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis	prime
Adjusted LIBOR Rate Applicable Margin Rate [Member] \| Revolving Credit Facility [Member] \| JPMorgan Chase [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.75%
Adjusted Prime Rate Applicable Margin Rate \| Revolving Credit Facility [Member] \| JPMorgan Chase [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	(1.30%)