v3.26.3
Shareholder Report, Average Annual Return (Details)
 12 Months Ended 60 Months Ended 104 Months Ended 120 Months Ended
Aug. 31, 2026
Aug. 31, 2025
Aug. 31, 2024
Aug. 31, 2023
Aug. 31, 2022
Aug. 31, 2021
Aug. 31, 2020
Aug. 31, 2019
Aug. 31, 2018
Aug. 31, 2017
Aug. 31, 2016
Aug. 31, 2026
Aug. 31, 2026
Aug. 31, 2026
Large Capitalization Value Portfolio Class A                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 2.98%                     7.88%   9.87%
Large Capitalization Value Portfolio Class C                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 2.37%                     7.24%   9.21%
Large Capitalization Value Portfolio Class I                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 3.40%                     8.32%   10.32%
Large Capitalization Growth Portfolio Class A                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 10.54%                     12.83%   16.73%
Large Capitalization Growth Portfolio Class C                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 9.58%                     12.11%   16.01%
Large Capitalization Growth Portfolio Class I                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 10.97%                     13.28%   17.20%
Mid Capitalization Portfolio - Class A                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 14.83%                     8.56%   9.22%
Mid Capitalization Portfolio - Class C                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 14.05%                     7.92%   8.58%
Mid Capitalization Portfolio - Class I                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 15.25%                     8.99%   9.66%
Small Capitalization Portfolio Class A                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 17.19%                     6.75%   10.14%
Small Capitalization Portfolio Class C                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 16.25%                     6.05%   9.45%
Small Capitalization Portfolio Class I                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 17.78%                     7.16%   10.55%
International Equity Portfolio Class A                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2025 8/31/2026 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 26.82%                     8.54%   7.20%
International Equity Portfolio Class C                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 26.18%                     7.89%   6.57%
International Equity Portfolio Class I                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 27.33%                     8.97%   7.63%
Health & Biotechnology Portfolio Class A                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 28.41%                     5.95%   6.47%
Health & Biotechnology Porfolio Class C                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 27.55%                     5.30%   5.84%
Health & Biotechnology Portfolio Class I                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 28.92%                     6.37%   6.90%
Technology & Communications Portfolio Class A                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 15.17%                     8.06%   14.72%
Technology & Communications Portfolio Class C                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 14.50%                     7.44%   14.05%
Technology & Communications Portfolio Class I                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent 15.59%                     8.50%   15.18%
Investment Quality Bond Portfolio Class A                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent (0.88%)                     0.55%   0.59%
Investment Quality Bond Portfolio Class C                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent (1.85%)                     (0.15%)   0.04%
Investment Quality Bond Portfolio Class I                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018 8/31/2017 8/31/2016      
Average Annual Return, Percent (0.62%)                     0.92%   0.97%
Aggressive Balanced Allocation Portfolio Class A                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018          
Average Annual Return, Percent 9.23%                     6.74% 7.48% [1]  
Aggressive Balanced Allocation Portfolio Class C                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018          
Average Annual Return, Percent 8.38%                     5.88% 6.78% [2]  
Aggressive Balanced Allocation Portfolio Class I                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018          
Average Annual Return, Percent 9.51%                     6.95% 7.67% [3]  
Conservative Balanced Allocation Portfolio Class A                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018          
Average Annual Return, Percent 5.27%                     4.51% 5.36% [4]  
Conservative Balanced Allocation Portfolio Class C                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018          
Average Annual Return, Percent 4.45%                     3.73% 4.72% [5]  
Conservative Balanced Allocation Portfolio Class I                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018          
Average Annual Return, Percent 5.48%                     4.77% 5.60% [6]  
Moderate Balanced Allocation Portfolio Class A                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018          
Average Annual Return, Percent 7.27%                     5.92% 6.95% [7]  
Moderate Balanced Allocation Portfolio Class C                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018          
Average Annual Return, Percent 6.39%                     5.10% 6.27% [8]  
Moderate Balanced Allocation Portfolio Class I                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018          
Average Annual Return, Percent 7.51%                     6.18% 7.16% [9]  
Moderately Aggressive Balanced Allocation Portfolio Class A                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018          
Average Annual Return, Percent 8.11%                     6.16% 6.93% [10]  
Moderately Aggressive Balanced Allocation Portfolio Class C                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018          
Average Annual Return, Percent 7.22%                     5.36% 6.25% [11]  
Moderately Aggressive Balanced Allocation Portfolio Class I                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018          
Average Annual Return, Percent 8.39%                     6.42% 7.14% [12]  
Moderately Conservative Balanced Allocation Portfolio Class A                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018          
Average Annual Return, Percent 7.06%                     6.01% 6.59% [13]  
Moderately Conservative Balanced Allocation Portfolio Class C                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018          
Average Annual Return, Percent 6.06%                     4.96% 5.71% [14]  
Moderately Conservative Balanced Allocation Portfolio Class I                            
Average Annual Return [Line Items]                            
Line Graph and Table Measure Name 8/31/2026 8/31/2025 8/31/2024 8/31/2023 8/31/2022 8/31/2021 8/31/2020 8/31/2019 8/31/2018          
Average Annual Return, Percent 7.06%                     6.01% 6.59% [15]  
C 000030171 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 2.94%                     6.61%   9.23%
C 000030171 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030171 Morningstar U S Fund Large Value Category [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 21.91%                     10.86%   11.55%
C 000030174 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 1.32%                     7.24%   9.21%
C 000030174 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030174 Morningstar U S Fund Large Value Category [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 21.91%                     10.86%   11.55%
C 000030172 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030172 Morningstar U S Fund Large Value Category [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 21.91%                     10.86%   11.55%
C 000030175 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 4.17%                     11.50%   16.04%
C 000030175 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030175 Morningstar U S Fund Large Value Category [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 14.28%                     9.22%   15.87%
C 000030178 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 8.58%                     12.11%   16.01%
C 000030178 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030178 Morningstar U S Fund Large Value Category [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 14.28%                     9.22%   15.87%
C 000030176 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030176 Morningstar U S Fund Large Value Category [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 14.28%                     9.22%   15.87%
C 000030158 With Sale Load Member [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 8.23%                     7.28%   8.58%
C 000030158 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030158 Morningstar U S Fund Mid Capitalization Blend Category [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 17.07%                     7.89%   10.88%
C 000030157 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 13.05%                     7.92%   8.58%
C 000030157 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030157 Morningstar U S Fund Mid Capitalization Blend Category [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 17.07%                     7.89%   10.88%
C 000030155 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030155 Morningstar U S Fund Mid Capitalization Blend Category [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 17.07%                     7.89%   10.88%
C 000030179 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 10.48%                     5.50%   9.50%
C 000030179 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030179 Morningstar U S Fund Small Capitalization Blend Category [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.98%                     7.29%   10.34%
C 000030182 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 15.25%                     6.05%   9.45%
C 000030182 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030182 Morningstar U S Fund Small Capitalization Blend Category [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.98%                     7.29%   10.34%
C 000030180 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030180 Morningstar U S Fund Small Capitalization Blend Category [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.98%                     7.29%   10.34%
C 000030183 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 19.54%                     7.26%   6.57%
C 000030183 M S C I A W Ex U S A [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 27.35%                     9.37%   9.64%
C 000030186 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 25.18%                     7.89%   6.57%
C 000030186 M S C I A W Ex U S A [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 27.35%                     9.37%   9.64%
C 000030184 M S C I A W Ex U S A [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 27.35%                     9.37%   9.64%
C 000030154 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 21.06%                     4.70%   5.85%
C 000030154 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030154 Morningstar U S Fund Health Category [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 37.45%                     3.73%   9.90%
C 000030153 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 26.55%                     5.30%   5.84%
C 000030153 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030153 Morningstar U S Fund Health Category [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 37.45%                     3.73%   9.90%
C 000030151 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030151 Morningstar U S Fund Health Category [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 37.45%                     3.73%   9.90%
C 000030162 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 8.57%                     6.79%   14.04%
C 000030162 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030161 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 13.50%                     7.44%   14.05%
C 000030161 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030159 S P 500 Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 20.38%                     12.79%   15.37%
C 000030163 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent (6.60%)                     (0.64%)   0.00%
C 000030163 Bloomberg U S Aggregate Bond Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 1.89%                     (0.29%)   1.40%
C 000030166 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent (2.85%)                     (0.15%)   0.04%
C 000030166 Bloomberg U S Aggregate Bond Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 1.89%                     (0.29%)   1.40%
C 000030164 Bloomberg U S Aggregate Bond Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 1.89%                     (0.29%)   1.40%
C 000196871 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 2.94%                     5.49% 6.75% [1]  
C 000196871 Morningstar Mod Aggressive Target Risk Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 17.10%                     7.75% 8.96% [1]  
C 000196872 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 7.38%                     5.88% 6.78% [2]  
C 000196872 Morningstar Mod Aggressive Target Risk Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 17.10%                     7.75% 8.96% [2]  
C 000196873 Morningstar Mod Aggressive Target Risk Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 17.10%                     7.75% 8.96% [3]  
C 000196874 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 0.80%                     3.28% 4.64% [4]  
C 000196874 Morningstar Mod Conservative Target Risk Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 9.39%                     3.99% 5.63% [4]  
C 000196875 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 3.45%                     3.73% 4.72% [5]  
C 000196875 Morningstar Mod Conservative Target Risk Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 9.39%                     3.99% 5.63% [5]  
Morningstar Mod Conservative Target Risk Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 9.39%                     3.99% 5.63% [6]  
C 000196877 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 1.08%                     4.68% 6.23% [7]  
C 000196877 Morningstar Moderate Target Risk Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 13.41%                     5.85% 7.30% [7]  
C 000196878 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 5.39%                     5.10% 6.27% [8]  
C 000196878 Morningstar Moderate Target Risk Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 13.41%                     5.85% 7.30% [8]  
C 000196879 Morningstar Moderate Target Risk Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 13.41%                     5.85% 7.30% [9]  
C 000196880 With Sale Load Member [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 1.88%                     4.91% 6.20% [10]  
C 000196880 Morningstar Moderate Target Risk Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 13.41%                     5.85% 7.30% [10]  
C 000196881 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 6.22%                     5.36% 6.25% [11]  
C 000196881 Morningstar Moderate Target Risk Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 13.41%                     5.85% 7.30% [11]  
C 000196882 Morningstar Moderate Target Risk Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 13.41%                     5.85% 7.30% [12]  
C 000196883 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 0.94%                     4.77% 5.86% [13]  
C 000196883 Morningstar Moderate Target Risk Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 13.41%                     5.85% 7.28% [13]  
C 000196884 With Sale Load [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 5.06%                     4.96% 5.71% [14]  
C 000196884 Morningstar Moderate Target Risk Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 13.41%                     5.85% 7.28% [14]  
C 000196885 Morningstar Moderate Target Risk Index [Member]                            
Average Annual Return [Line Items]                            
Average Annual Return, Percent 13.41%                     5.85% 7.28% [15]  
[1] From January 4, 2018. Performance data quoted represents past performance, which is not a good predictor of the Fund’s future performance. Investment return and principal value will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. Current performance may be lower or higher than the performance data quoted. The average annual total return is the annual compound return for the indicated period and reflects the change in share price and the reinvestment of all dividends and capital gains. Call 1-888-672-4839 for current performance information or questions.
[2] From January 4, 2018. Performance data quoted represents past performance, which is not a good predictor of the Fund’s future performance. Investment return and principal value will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. Current performance may be lower or higher than the performance data quoted. The average annual total return is the annual compound return for the indicated period and reflects the change in share price and the reinvestment of all dividends and capital gains. Call 1-888-672-4839 for current performance information or questions.
[3] From January 4, 2018. Performance data quoted represents past performance, which is not a good predictor of the Fund’s future performance. Investment return and principal value will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. Current performance may be lower or higher than the performance data quoted. The average annual total return is the annual compound return for the indicated period and reflects the change in share price and the reinvestment of all dividends and capital gains. Call 1-888-672-4839 for current performance information or questions.
[4] From January 4, 2018. Performance data quoted represents past performance, which is not a good predictor of the Fund’s future performance. Investment return and principal value will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. Current performance may be lower or higher than the performance data quoted. The average annual total return is the annual compound return for the indicated period and reflects the change in share price and the reinvestment of all dividends and capital gains. Call 1-888-672-4839 for current performance information or questions.
[5] From January 4, 2018. Performance data quoted represents past performance, which is not a good predictor of the Fund’s future performance. Investment return and principal value will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. Current performance may be lower or higher than the performance data quoted. The average annual total return is the annual compound return for the indicated period and reflects the change in share price and the reinvestment of all dividends and capital gains. Call 1-888-672-4839 for current performance information or questions.
[6] From January 4, 2018. Performance data quoted represents past performance, which is not a good predictor of the Fund’s future performance. Investment return and principal value will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. Current performance may be lower or higher than the performance data quoted. The average annual total return is the annual compound return for the indicated period and reflects the change in share price and the reinvestment of all dividends and capital gains. Call 1-888-672-4839 for current performance information or questions.
[7] From January 4, 2018. Performance data quoted represents past performance, which is not a good predictor of the Fund’s future performance. Investment return and principal value will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. Current performance may be lower or higher than the performance data quoted. The average annual total return is the annual compound return for the indicated period and reflects the change in share price and the reinvestment of all dividends and capital gains. Call 1-888-672-4839 for current performance information or questions.
[8] From January 4, 2018. Performance data quoted represents past performance, which is not a good predictor of the Fund’s future performance. Investment return and principal value will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. Current performance may be lower or higher than the performance data quoted. The average annual total return is the annual compound return for the indicated period and reflects the change in share price and the reinvestment of all dividends and capital gains. Call 1-888-672-4839 for current performance information or questions.
[9] From January 4, 2018. Performance data quoted represents past performance, which is not a good predictor of the Fund’s future performance. Investment return and principal value will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. Current performance may be lower or higher than the performance data quoted. The average annual total return is the annual compound return for the indicated period and reflects the change in share price and the reinvestment of all dividends and capital gains. Call 1-888-672-4839 for current performance information or questions.
[10] From January 4, 2018. Performance data quoted represents past performance, which is not a good predictor of the Fund’s future performance. Investment return and principal value will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. Current performance may be lower or higher than the performance data quoted. The average annual total return is the annual compound return for the indicated period and reflects the change in share price and the reinvestment of all dividends and capital gains. Call 1-888-672-4839 for current performance information or questions.
[11] From January 4, 2018. Performance data quoted represents past performance, which is not a good predictor of the Fund’s future performance. Investment return and principal value will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. Current performance may be lower or higher than the performance data quoted. The average annual total return is the annual compound return for the indicated period and reflects the change in share price and the reinvestment of all dividends and capital gains. Call 1-888-672-4839 for current performance information or questions.
[12] From January 4, 2018. Performance data quoted represents past performance, which is not a good predictor of the Fund’s future performance. Investment return and principal value will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. Current performance may be lower or higher than the performance data quoted. The average annual total return is the annual compound return for the indicated period and reflects the change in share price and the reinvestment of all dividends and capital gains. Call 1-888-672-4839 for current performance information or questions.
[13] From January 10, 2018. Performance data quoted represents past performance, which is not a good predictor of the Fund’s future performance. Investment return and principal value will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. Current performance may be lower or higher than the performance data quoted. The average annual total return is the annual compound return for the indicated period and reflects the change in share price and the reinvestment of all dividends and capital gains. Call 1-888-672-4839 for current performance information or questions.
[14] From January 10, 2018. Performance data quoted represents past performance, which is not a good predictor of the Fund’s future performance. Investment return and principal value will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. Current performance may be lower or higher than the performance data quoted. The average annual total return is the annual compound return for the indicated period and reflects the change in share price and the reinvestment of all dividends and capital gains. Call 1-888-672-4839 for current performance information or questions.
[15] From January 10, 2018. Performance data quoted represents past performance, which is not a good predictor of the Fund’s future performance. Investment return and principal value will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. Current performance may be lower or higher than the performance data quoted. The average annual total return is the annual compound return for the indicated period and reflects the change in share price and the reinvestment of all dividends and capital gains. Call 1-888-672-4839 for current performance information or questions.