Summary of Significant Accounting Policies - Schedule of Fair value of Earnout Liability (Detail) - Earnout Liabilities [Member]	Dec. 31, 2025	Jan. 16, 2025
Sale of Inventory [Member] \| Discount Rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Earnout liabilities, measurement input	0.21	0.21
Sale of Inventory [Member] \| Probability of Milestone Achievement [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Earnout liabilities, measurement input	1	1
Sale of Inventory [Member] \| Expected Term (years) [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Earnout liabilities term	1 year	1 year
Hair and Scalp Products [Member] \| Discount Rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Earnout liabilities, measurement input	0.21	0.21
Hair and Scalp Products [Member] \| Probability of Milestone Achievement [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Earnout liabilities, measurement input	0.25	0.75
Hair and Scalp Products [Member] \| Expected Term (years) [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Earnout liabilities term	1 year 14 days	2 years

Value of input used to measure liability in contingent consideration arrangement in business combination.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 805
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479328/805-10-50-8

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 805
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 43
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479303/805-10-55-43

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479581/805-30-50-2

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479581/805-30-50-1

Name:	us-gaap_BusinessCombinationContingentConsiderationLiabilityMeasurementInput
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant