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Class K [Member] Average Annual Total Returns - Class K
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%
New Jersey Customized Reference Benchmark (Reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent [1] 4.62% 1.50%
Class K      
Prospectus [Line Items]      
Average Annual Return, Percent 4.06% 1.03% 2.58%
Class K | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 4.06% 1.03% 2.58%
Class K | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 3.96% 1.55% 2.78%
[1] The New Jersey Customized Reference Benchmark commenced in September 2016 and therefore the New Jersey Customized Reference Benchmark does not have a return for the 10-year period.