XML 56 R40.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Employee Benefit Plans (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Summary of Company's Stock Option and Restricted Stock Unit Activity | Stock Options, RSUs and PRSUs The following table summarizes the Company’s stock option, RSU and PRSU activities during the year ended December 31, 2016 (in thousands, except per share amounts):
|  |  | Stock Options Outstanding |  | Restricted Stock Units * Outstanding
| Shares Available for Grant |  | Number of Shares |  | Weighted Average Exercise Price |  | Number of Units |  | Weighted Average Grant Date Fair Value
Balance at December 31, 2015 | 6,150 |  |  | 5,674 |  |  | $ | 6.56 |  |  | 2,182 |  |  | $ | 6.99 |
Authorized | 2,000 |  |  | — |  |  | — |  |  | — |  |  | — |
Granted | (6,201 | ) |  | 946 |  |  | 3.19 |  |  | 3,503 |  |  | 3.78 |
Options exercised | — |  |  | (150 | ) |  | 4.77 |  |  | — |  |  | — |
Shares released | — |  |  | — |  |  | — |  |  | (1,480 | ) |  | 6.57 |
Forfeited or canceled | 1,963 |  |  | (1,451 | ) |  | 6.46 |  |  | (341 | ) |  | 5.56 |
Balance at December 31, 2016 | 3,912 |  |  | 5,019 |  |  | $ | 6.01 |  |  | 3,864 |  |  | $ | 4.26 |
* The preceding table includes PRSUs activities during the year ended December 31, 2016.
Summary of Stock Options Outstanding | The following table summarizes information about stock options outstanding as of December 31, 2016 (in thousands, except per share amounts and term):
| Number of Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (Years) |  | Aggregate Intrinsic Value
Vested and expected to vest | 4,839 |  |  | $ | 6.05 |  |  | 3.8 |  | $ | 1,930 |
Exercisable | 3,240 |  |  | 6.61 |  |  | 3.0 |  | 388 |
Summary of Restricted Stock Units Outstanding | The following table summarizes information about RSUs and PRSUs outstanding as of December 31, 2016 (in thousands, except term):
| Number of Shares Underlying Restricted Stock Units |  | Weighted Average Remaining Vesting Period (Years) |  | Aggregate Fair Value
Vested and expected to vest | 3,606 |  |  | 0.6 |  | $ | 18,031 |
Schedule of Defined Benefit Plans Disclosures | The table below shows the present value of the Company’s pension obligations as of December 31, 2016 and changes to the Company’s pension obligations (in thousands):
| December 31, 2016
Projected benefit obligation: |
Acquired from TVN acquisition | $ | 5,907 |
Service cost | 217 |
Interest cost | 87 |
Actuarial losses | 279 |
Curtailment | (1,955 | )
Foreign currency translation adjustment | (271 | )
As of December 31, 2016 | $ | 4,264 |
Presented on the Consolidated Balance Sheets under: |
Current portion (presented under “Accrued and other current liabilities”) | $ | 27 |
Long-term portion (presented under “Other non-current liabilities”) | $ | 4,237 |
Schedule of Pension Obligations Assumptions Used | The following assumptions were used in determining the Company’s pension obligation:
| December 31, 2016
Discount rate | 1.5 | %
Mobility rate | 3.0 | %
Salary progression rate | 2.0 | %
Schedule of Expected Benefit Payments | Future benefits expected to be paid in each of the next five years, and in the aggregate for the five year period thereafter are as follows (in thousands):
Years ending December 31, |
2017 | $ | 29 |
2018 | 29 |
2019 | 46 |
2020 | — |
2021 | 66 |
2022 - 2026 | 2,015 |
| $ | 2,185 |
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs | The following table summarizes stock-based compensation expense for all plans (in thousands):
| Year ended December 31,
| 2016 |  | 2015 |  | 2014
Stock-based compensation in: |  |  |  |  |
Cost of revenue | $ | 1,554 |  |  | $ | 1,862 |  |  | $ | 2,359 |
Research and development expense | 3,711 |  |  | 4,435 |  |  | 4,844 |
Selling, general and administrative expense | 7,795 |  |  | 9,285 |  |  | 10,084 |
Total stock-based compensation in operating expense | 11,506 |  |  | 13,720 |  |  | 14,928 |
Total stock-based compensation recognized in net loss | $ | 13,060 |  |  | $ | 15,582 |  |  | $ | 17,287 |
Valuation Assumptions for Stock Options | The Company estimates the fair value of employee stock options and stock purchase rights under the ESPP using a Black-Scholes option valuation model. The value of the stock purchase rights under the ESPP consists of: (1) the 15% discount on the purchase of the stock; (2) 85% of the fair value of the call option; and (3) 15% of the fair value of the put option. The call option and put option were valued using the Black-Scholes option pricing model. At the date of grant, the Company estimated the fair value of each stock option grant and stock purchase right granted under the ESPP using the following weighted average assumptions:
| Employee Stock Options |  | ESPP
| 2016 |  | 2015 |  | 2014 |  | 2016 |  | 2015 |  | 2014
Expected term (in years) | 4.30 |  |  | 4.65 |  |  | 4.70 |  |  | 0.50 |  |  | 0.50 |  |  | 0.50 |
Volatility | 36 | % |  | 38 | % |  | 40 | % |  | 70 | % |  | 34 | % |  | 32 | %
Risk-free interest rate | 1.4 | % |  | 1.5 | % |  | 1.7 | % |  | 0.6 | % |  | 0.3 | % |  | 0.1 | %
Expected dividends | 0.0 | % |  | 0.0 | % |  | 0.0 | % |  | 0.0 | % |  | 0.0 | % |  | 0.0 | %

X
- Definition Tabular disclosure for schedule of share-based compensation arrangement by stock option and restricted stock unit activity. + References No definition available. + Details
Name: | hlit_ScheduleOfShareBasedCompensationArrangementByStockOptionAndRestrictedStockUnitActivityTableTextBlock
Namespace Prefix: | hlit_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfAssumptionsUsedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e2439-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e2417-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e2410-114920 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=73719040&loc=d3e4179-114921 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + 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 (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 + Details
Name: | us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfExpectedBenefitPaymentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration