XML 46 R55.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Employee Benefit Plans - Summary of Restricted Stock Units Outstanding (Detail) (Restricted Stock Units Outstanding [Member], USD $) In Thousands, unless otherwise specified | 9 Months Ended
--- | ---
Sep. 27, 2013
Restricted Stock Units Outstanding [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Number of Shares Underlying Restricted Stock Units | 2,934 |
Weighted Average Remaining Vesting Period (Years) | 0 years 10 months 29 days |
Aggregate Fair Value | $ 22,824 | [1]
[1] | Represents the fair value of the Company’s common stock as of September 27, 2013, times the number of restricted stock units vested and expected to vest as of the same date.

X
- Definition Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period And Expected To Vest Total Fair Value + References No definition available. + Details
Name: | hlit_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodAndExpectedToVestTotalFairValue
Namespace Prefix: | hlit_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Share Based Compensation Arrangement By Share Based Payment Award Other Than Options Vested And Expected To Vest Outstanding Number + References No definition available. + Details
Name: | hlit_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsVestedAndExpectedToVestOutstandingNumber
Namespace Prefix: | hlit_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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