v3.26.3
Investor A C and Institutional [Member] Average Annual Total Returns - Investor A, C and Institutional
12 Months Ended 60 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Bloomberg Municipal Bond Index (Reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 4.25% 0.80% 2.34%
Pennsylvania Customized Reference Benchmark (Reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent [1] 4.41% 0.99%
Institutional Shares      
Prospectus [Line Items]      
Average Annual Return, Percent 3.87% 0.65% 2.04%
Institutional Shares | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 3.87% 0.65% 2.04%
Institutional Shares | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 3.85% 1.21% 2.36%
Investor A Shares      
Prospectus [Line Items]      
Average Annual Return, Percent (0.78%) (0.46%) 1.36%
Investor C Shares      
Prospectus [Line Items]      
Average Annual Return, Percent 1.84% (0.35%) 1.18%
[1] The Pennsylvania Customized Reference Benchmark commenced in September 2016 and therefore the Pennsylvania Customized Reference Benchmark does not have a return for the 10-year period.