Debt instrument maturity month and year

No definition available.

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Namespace Prefix:	hlio_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

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Period Type:	duration

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- 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.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities.

+ References

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

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

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+ Details

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

- Definition

The effective interest rate at the end of the reporting period.

+ References

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- 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.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Fair value of all derivative assets designated as hedges of net investment in foreign operations.

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Period Type:	instant

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

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Credit Facilities (Details Textual) € in Thousands, ₩ in Thousands	6 Months Ended
	Jun. 29, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 29, 2019 EUR (€)	Jun. 29, 2019 KRW (₩)	Jun. 29, 2019 AUD ($)
Debt Instrument [Line Items]
Loans maturity, description	Various
PNC Bank, National Association, as Administrative Agent, and Lender Party [Member]
Debt Instrument [Line Items]
Interest expense recognized	$ 3,803,000	$ 4,534,000
PNC Bank, National Association, as Administrative Agent, and Lender Party [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facilities, maximum capacity	$ 400,000,000
Net investment hedge \| €			€ 60,000
Effective interest rate	3.68%		3.68%	3.68%	3.68%
Shinhan Bank [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Credit facilities, maximum capacity \| ₩				₩ 1,000,000
Effective interest rate	1.87%		1.87%	1.87%	1.87%
Loan maturity month and year	2020-03
National Australia Bank [Member] \| Other Long-Term Debt [Member]
Debt Instrument [Line Items]
Loans, frequency of payments	monthly
Loans maturity, description	The loans mature at various dates through January 2024.
National Australia Bank [Member] \| Minimum [Member] \| Other Long-Term Debt [Member]
Debt Instrument [Line Items]
Interest rates	4.00%		4.00%	4.00%	4.00%
National Australia Bank [Member] \| Maximum [Member] \| Other Long-Term Debt [Member]
Debt Instrument [Line Items]
Interest rates	5.30%		5.30%	5.30%	5.30%
National Australia Bank [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facilities, maximum capacity					$ 3,000,000