v3.26.3
S000042770 [Member] Shareholder Fees - Meridian Small Cap Growth Fund
Jun. 30, 2026
Investor Class  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) (2.00%)
Class A  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) (2.00%)
Class C  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 1.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%