SUBSEQUENT EVENTS - Additional Information (Details)	May 28, 2026 shares
EBP 008
EBP, Subsequent Event [Line Items]
Common stock portion, number of MasterBrand stock for each share of American Woodmark stock converted	5.150

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-3

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Period Type:	duration