Shareholder Report, Average Annual Return (Details)
|
12 Months Ended |
60 Months Ended |
68 Months Ended |
104 Months Ended |
119 Months Ended |
120 Months Ended |
Aug. 31, 2026 |
Aug. 31, 2026 |
Aug. 31, 2026 |
Aug. 31, 2026 |
Aug. 31, 2026 |
Aug. 31, 2026 |
Aug. 31, 2026 |
| Without Sales Load [Member] | C000102309 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
1.90%
|
(0.44%)
|
|
|
|
|
1.01%
|
| Without Sales Load [Member] | C000024293 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
2.04%
|
(0.20%)
|
|
|
|
|
1.22%
|
| Without Sales Load [Member] | C000024292 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
1.79%
|
(0.46%)
|
|
|
|
|
0.97%
|
| Without Sales Load [Member] | C000041650 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
3.14%
|
3.20%
|
|
|
|
|
1.94%
|
| Without Sales Load [Member] | C000041649 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
3.57%
|
3.54%
|
|
|
|
|
2.21%
|
| Without Sales Load [Member] | C000073542 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
3.14%
|
3.27%
|
|
|
|
|
2.09%
|
| Without Sales Load [Member] | C000041652 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
3.66%
|
3.61%
|
|
|
|
2.29%
|
|
| Without Sales Load [Member] | C000223873 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
11.51%
|
7.11%
|
7.82%
|
|
|
|
|
| Without Sales Load [Member] | C000223874 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
11.78%
|
7.37%
|
8.11%
|
|
|
|
|
| Without Sales Load [Member] | C000223872 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
11.60%
|
7.13%
|
7.85%
|
|
|
|
|
| Without Sales Load [Member] | C000102307 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
2.59%
|
1.86%
|
|
|
|
|
1.95%
|
| Without Sales Load [Member] | C000024286 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
2.85%
|
2.14%
|
|
|
|
|
2.21%
|
| Without Sales Load [Member] | C000024285 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
2.48%
|
1.88%
|
|
|
|
|
1.94%
|
| Without Sales Load [Member] | C000196700 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
2.45%
|
0.45%
|
|
1.99%
|
|
|
|
| Without Sales Load [Member] | C000196701 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
2.70%
|
0.70%
|
|
2.25%
|
|
|
|
| Without Sales Load [Member] | C000196702 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
2.35%
|
0.43%
|
|
2.02%
|
|
|
|
| Without Sales Load [Member] | C000041646 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
3.18%
|
3.15%
|
|
|
|
|
1.87%
|
| Without Sales Load [Member] | C000041645 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
3.61%
|
3.52%
|
|
|
|
|
2.20%
|
| Without Sales Load [Member] | C000041648 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
3.70%
|
3.60%
|
|
|
2.53%
|
|
|
| Without Sales Load [Member] | C000196703 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
2.19%
|
1.95%
|
|
1.21%
|
|
|
|
| Without Sales Load [Member] | C000196704 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
2.45%
|
2.18%
|
|
1.60%
|
|
|
|
| Without Sales Load [Member] | C000196705 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
2.19%
|
1.97%
|
|
1.35%
|
|
|
|
| Without Sales Load [Member] | C000136573 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
38.21%
|
22.93%
|
|
|
|
|
11.90%
|
| Without Sales Load [Member] | C000136574 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
37.20%
|
22.00%
|
|
|
|
|
11.06%
|
| Without Sales Load [Member] | C000136571 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
38.59%
|
23.23%
|
|
|
|
|
12.19%
|
| Without Sales Load [Member] | C000136572 |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
38.21%
|
22.90%
|
|
|
|
|
11.89%
|
| Bloomberg U.S. Aggregate Bond Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Bloomberg U.S. Aggregate Bond Index
|
|
|
|
|
|
|
| Average Annual Return, Percent |
1.89%
|
(0.29%)
|
|
|
|
|
1.40%
|
| Bloomberg U.S. Aggregate Bond Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Bloomberg U.S. Aggregate Bond Index
|
|
|
|
|
|
|
| Average Annual Return, Percent |
1.89%
|
(0.29%)
|
|
|
|
|
1.40%
|
| Bloomberg U.S. Aggregate Bond Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Bloomberg U.S. Aggregate Bond Index
|
|
|
|
|
|
|
| Average Annual Return, Percent |
1.89%
|
(0.29%)
|
|
|
|
|
1.40%
|
| S&P 500 Total Return Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
20.38%
|
12.79%
|
15.20%
|
|
|
|
|
| S&P 500 Total Return Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
20.38%
|
12.79%
|
15.20%
|
|
|
|
|
| S&P 500 Total Return Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
20.38%
|
12.79%
|
15.20%
|
|
|
|
|
| Bloomberg U.S. Aggregate Bond Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Bloomberg U.S. Aggregate Bond Index
|
|
|
|
|
|
|
| Average Annual Return, Percent |
1.89%
|
(0.29%)
|
|
|
|
|
1.40%
|
| Bloomberg U.S. Aggregate Bond Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Bloomberg U.S. Aggregate Bond Index
|
|
|
|
|
|
|
| Average Annual Return, Percent |
1.89%
|
(0.29%)
|
|
|
|
|
1.40%
|
| Bloomberg U.S. Aggregate Bond Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Bloomberg U.S. Aggregate Bond Index
|
|
|
|
|
|
|
| Average Annual Return, Percent |
1.89%
|
(0.29%)
|
|
|
|
|
1.40%
|
| Bloomberg U.S. Aggregate Bond Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Bloomberg U.S. Aggregate Bond Index
|
|
|
|
|
|
|
| Average Annual Return, Percent |
1.89%
|
(0.29%)
|
|
1.61%
|
|
|
|
| Bloomberg U.S. Aggregate Bond Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Bloomberg U.S. Aggregate Bond Index
|
|
|
|
|
|
|
| Average Annual Return, Percent |
1.89%
|
(0.29%)
|
|
1.61%
|
|
|
|
| Bloomberg U.S. Aggregate Bond Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Bloomberg U.S. Aggregate Bond Index
|
|
|
|
|
|
|
| Average Annual Return, Percent |
1.89%
|
(0.29%)
|
|
1.61%
|
|
|
|
| Bloomberg Municipal Bond Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Bloomberg Municipal Bond Index
|
|
|
|
|
|
|
| Average Annual Return, Percent |
4.12%
|
0.54%
|
|
2.12%
|
|
|
|
| Bloomberg Municipal Bond Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Bloomberg Municipal Bond Index
|
|
|
|
|
|
|
| Average Annual Return, Percent |
4.12%
|
0.54%
|
|
2.12%
|
|
|
|
| Bloomberg Municipal Bond Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Bloomberg Municipal Bond Index
|
|
|
|
|
|
|
| Average Annual Return, Percent |
4.12%
|
0.54%
|
|
2.12%
|
|
|
|
| S&P 500 Total Return Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
20.38%
|
12.79%
|
|
|
|
|
15.37%
|
| S&P 500 Total Return Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
20.38%
|
12.79%
|
|
|
|
|
15.37%
|
| S&P 500 Total Return Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
20.38%
|
12.79%
|
|
|
|
|
15.37%
|
| S&P 500 Total Return Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Average Annual Return, Percent |
20.38%
|
12.79%
|
|
|
|
|
15.37%
|
| Lipper Core Bond Funds Average |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Lipper Core Bond Funds Average
|
|
|
|
|
|
|
| Lipper Core Bond Funds Average |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Lipper Core Bond Funds Average
|
|
|
|
|
|
|
| Lipper Core Bond Funds Average |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Lipper Core Bond Funds Average
|
|
|
|
|
|
|
| ICE BofA ML 1-5 Year US Corporate/Government Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
ICE BofA ML 1-5 Year US Corporate/Government Index
|
|
|
|
|
|
|
| ICE BofA ML 1-5 Year US Corporate/Government Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
ICE BofA ML 1-5 Year US Corporate/Government Index
|
|
|
|
|
|
|
| ICE BofA ML 1-5 Year US Corporate/Government Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
ICE BofA ML 1-5 Year US Corporate/Government Index
|
|
|
|
|
|
|
| Lipper Multi-Sector Income Funds Average |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Lipper Multi-Sector Income Funds Average
|
|
|
|
|
|
|
| Lipper Multi-Sector Income Funds Average |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Lipper Multi-Sector Income Funds Average
|
|
|
|
|
|
|
| Lipper Multi-Sector Income Funds Average |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Lipper Multi-Sector Income Funds Average
|
|
|
|
|
|
|
| Bloomberg Municipal 1 Year Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Bloomberg 1-Year Municipal Bond Index
|
|
|
|
|
|
|
| Bloomberg Municipal 1 Year Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Bloomberg 1-Year Municipal Bond Index
|
|
|
|
|
|
|
| Bloomberg Municipal 1 Year Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
Bloomberg 1-Year Municipal Bond Index
|
|
|
|
|
|
|
| MSCI World Energy Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
MSCI World Energy Index
|
|
|
|
|
|
|
| MSCI World Energy Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
MSCI World Energy Index
|
|
|
|
|
|
|
| MSCI World Energy Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
MSCI World Energy Index
|
|
|
|
|
|
|
| MSCI World Energy Index |
|
|
|
|
|
|
|
| Average Annual Return [Line Items] |
|
|
|
|
|
|
|
| Line Graph and Table Measure Name |
MSCI World Energy Index
|
|
|
|
|
|
|