v3.26.1
S000006016 [Member] Shareholder Fees - Permanent Portfolio
Jan. 31, 2026
Class I  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage) 0.00%
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) 1.00% [1]
Class A  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.00%
Maximum Deferred Sales Charge (as a percentage) 1.00% [1]
[1] For Class A shares, a contingent deferred sales charge (“CDSC”) of 1.00% applies on certain redemptions made within one year following purchases of $1 million or more made without an initial sales charge. For Class C shares, a CDSC of 1.00% applies to shares that are redeemed within one year of purchase.