v3.25.4
Average Annual Total Returns
 12 Months Ended 32 Months Ended 60 Months Ended 114 Months Ended 120 Months Ended 264 Months Ended 296 Months Ended 321 Months Ended 354 Months Ended
Oct. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
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Dec. 31, 2025
HSBC U.S. Government Money Market Fund Class A Shares                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Class A Shares                      
Average Annual Return, Percent [1]   3.89%   2.93%   1.85%         1.77%  
Performance Inception Date [1] Apr. 01, 1999                      
HSBC U.S. Government Money Market Fund Class I Shares                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Class I Shares                      
Average Annual Return, Percent [1]   4.25%   3.21%   2.13% 1.46%          
Performance Inception Date [1] Dec. 24, 2003                      
HSBC U.S. Government Money Market Fund Intermediary Class                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Intermediary Shares                      
Average Annual Return, Percent [1]   4.22%   3.18% 2.21%            
Performance Inception Date [1] Jul. 12, 2016                      
HSBC U.S. Government Money Market Fund Intermediary Service Class                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Intermediary Service Shares                      
Average Annual Return, Percent [1]   4.20%   3.17% 2.19%            
Performance Inception Date [1] Jul. 12, 2016                      
HSBC U.S. Government Money Market Fund Class P Shares                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Class P Shares                      
Average Annual Return, Percent [1]   4.20% 4.82%              
Performance Inception Date [1] May 11, 2023                      
HSBC U.S. Government Money Market Fund Class Y Shares                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Class Y Shares                      
Average Annual Return, Percent [1]   4.15%   3.12%   2.04%           2.22%
Performance Inception Date [1] Jul. 01, 1996                      
HSBC U.S. Treasury Money Market Fund Class A Shares                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Class A Shares                      
Average Annual Return, Percent [2]   3.83%   2.90%   1.81%     1.35%      
Performance Inception Date [2] May 14, 2001                      
HSBC U.S. Treasury Money Market Fund Class I Shares                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Class I Shares                      
Average Annual Return, Percent [2]   4.21%   3.18%   2.09%   1.54%        
Performance Inception Date [2] Dec. 30, 2003                      
HSBC U.S. Treasury Money Market Fund Intermediary Class                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Intermediary Shares                      
Average Annual Return, Percent [2]   4.19%   3.16% 2.17%            
Performance Inception Date [2] Jul. 12, 2016                      
HSBC U.S. Treasury Money Market Fund Intermediary Service Class                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Intermediary Service Shares                      
Average Annual Return, Percent [2]   4.17%   3.15% 2.17%            
Performance Inception Date [2] Jul. 12, 2016                      
HSBC U.S. Treasury Money Market Fund Class P Shares                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Class P Shares                      
Average Annual Return, Percent [2]   4.17% 4.80%              
Performance Inception Date [2] May 11, 2023                      
HSBC U.S. Treasury Money Market Fund Class Y Shares                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Class Y Shares                      
Average Annual Return, Percent [2]   4.09%   3.09%   2.00%       1.51%    
Performance Inception Date [2] May 11, 2001                      
[1] During the year ended December 31, 2007, the Fund received a one-time reimbursement from the Adviser related to past marketing arrangements. During the year ended December 31, 2010, the Fund also received a one-time payment in respect of a class action settlement. As a result, the Fund’s total returns for the years ended December 31, 2007 and 2010 were higher than they would have been had the Fund not received these payments.
[2] During the year ended December 31, 2007, the Fund received a one-time reimbursement from the Adviser related to past marketing arrangements. During the year ended December 31, 2010, the Fund also received a one-time payment in respect of a class action settlement. As a result, the Fund’s total returns for the years ended December 31, 2007 and 2010 were higher than they would have been had the Fund not received these payments.