XML 12 R1.htm IDEA: XBRL DOCUMENT v3.10.0.1
Document and Entity Information - shares
 6 Months Ended
Dec. 31, 2018
Feb. 05, 2019
Document Information [Line Items]    
Entity Registrant Name MALIBU BOATS, INC.  
Entity Central Index Key 0001590976  
Document Type 10-Q  
Document Period End Date Dec. 31, 2018  
Amendment Flag false  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Current Fiscal Year End Date --06-30  
Entity Filer Category Accelerated Filer  
Entity Emerging Growth Company true  
Entity Smaller Reporting Company false  
Entity Transition Period true  
Class A Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding (in shares)   20,836,597
Class B Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding (in shares)   16