Debt Conversion, Converted Instrument, Settled In Cash

No definition available.

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Namespace Prefix:	hlit_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Debt Instrument, Periodic Payment, Percentage Of Principal

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Premium Fee Basis Spread

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Line of Credit Facility, Accordion Feature, Increase Limit

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

+ References

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Period Type:	duration

- 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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Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

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Period Type:	duration

- 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

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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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.

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DEBT (Details) - USD ($) shares in Millions	1 Months Ended			3 Months Ended
DEBT (Details) - USD ($) shares in Millions	Dec. 31, 2024	Apr. 30, 2024	Dec. 31, 2023	Mar. 28, 2025	Dec. 31, 2027	Dec. 31, 2025	Sep. 30, 2019	Sep. 13, 2019
Debt Instrument [Line Items]
Long-term debt	$ 114,278,000			$ 113,791,000
2024 Notes \| Senior Notes
Debt Instrument [Line Items]
Debt instrument stated percentage (as a percent)								2.00%
Debt instrument principal amount		$ 115,500,000					$ 115,500,000
Settled in cash		$ 115,500,000
Debt conversion, converted instrument, shares issued (in shares)		4.6
Credit Agreement \| Line of Credit
Debt Instrument [Line Items]
Debt instrument, term			5 years
Debt instrument, premium fee basis spread (as a percent)	0.10%
Debt interest expense				1,800,000
Repayment of principal due in next twelve months				2,500,000
Credit Agreement \| Line of Credit \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.00%
Line of credit facility, commitment fee (percentage)	0.25%
Credit Agreement \| Line of Credit \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.75%
Line of credit facility, commitment fee (percentage)	0.35%
Credit Agreement \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 160,000,000		$ 120,000,000
Line of credit facility, accordion feature, increase limit	100,000,000
Long-term debt				75,000,000
Credit Agreement \| Line of Credit \| Letter of Credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	10,000,000
Credit Agreement \| Line of Credit \| Secured Debt
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 40,000,000
Proceeds from line of credit		$ 40,000,000
Long-term debt				$ 39,000,000
Quarterly installments, percentage of principal	1.25%
Credit Agreement \| Line of Credit \| Secured Debt \| Forecast
Debt Instrument [Line Items]
Quarterly installments, percentage of principal					2.50%	1.875%