LEASES - Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Lease assets
Operating lease right-of-use assets	$ 40,863	$ 42,869
Property, plant and equipment, net	7,091	7,279
Total lease assets	47,954	50,148
Lease liabilities
Current portion of operating lease liabilities	7,785	7,731
Current portion of finance lease liabilities	467	459
Long-term operating lease liabilities	35,629	37,553
Long-term finance lease liabilities	7,711	7,830
Total lease liabilities	$ 51,592	$ 53,573

Assets, Lessee

No definition available.

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- Definition

Lease, Liability

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Leased Assets, Operating And Finance Right-of-Use Assets

+ References

No definition available.

+ Details

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- Definition

Liabilities, Lessee

+ References

No definition available.

+ Details

Name:	hyfm_LiabilitiesLesseeAbstract
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Balance Type:	na
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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

+ Details

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

- Definition

Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent.

+ References

+ Details

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

- Definition

Amount, after accumulated amortization, of right-of-use asset from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

+ Details

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

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

+ Details

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