v3.26.3
S000054634 [Member] Shareholder Fees - NexPoint Merger Arbitrage Fund
Jun. 30, 2026
Class A  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.50%
Maximum Deferred Sales Charge (as a percentage) 1.00% [1]
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Exchange Fee (as a percentage of Amount Redeemed) 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% [2]
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Exchange Fee (as a percentage of Amount Redeemed) 0.00%
Class Z  
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%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Exchange Fee (as a percentage of Amount Redeemed) 0.00%
[1]
Class A Shares bought without an initial sales charge in accounts aggregating $500,000 or more at the time of purchase are subject to a 1.00% contingent deferred sales charge (“CDSC”) if the shares are sold within 18 months of purchase.
[2]
Class C Shares are subject to a 1% CDSC for redemptions of shares within one year of purchase. This CDSC does not apply to redemptions under a systematic withdrawal plan.