v3.25.2
Class K [Member] Average Annual Total Returns - Class K
12 Months Ended 60 Months Ended 120 Months Ended
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Bloomberg Municipal Bond Index (Reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 1.05% 0.99% 2.25%
California Customized Reference Benchmark (Reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 1.55% 0.94% [1]
Class K Shares      
Prospectus [Line Items]      
Average Annual Return, Percent 3.45% 1.26% 2.63%
Class K Shares | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 3.22% 1.15% 2.49%
Class K Shares | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 3.22% 1.46% 2.58%
[1] The California Customized Reference Benchmark commenced in September 2016 and therefore the California Customized Reference Benchmark does not have a return for the 10-year period.