Shareholder Report, Average Annual Return (Details)
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12 Months Ended |
60 Months Ended |
120 Months Ended |
Mar. 31, 2025 |
Mar. 31, 2025 |
Mar. 31, 2025 |
| International Portfolio I - Class A |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
International Portfolio I, Class A - Load
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| Average Annual Return, Percent |
1.25%
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6.97%
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0.04%
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| Large Cap Core Portfolio I - Class A |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Large Cap Core Portfolio I, Class A - Load
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| Average Annual Return, Percent |
(0.60%)
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13.72%
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9.26%
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| Large Cap Growth Portfolio I - Class A |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Large Cap Growth Portfolio I, Class A - Load
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| Average Annual Return, Percent |
(1.50%)
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14.38%
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11.73%
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| Large Cap Value Portfolio - Class A |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Large Cap Value Portfolio I, Class A - Load
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| Average Annual Return, Percent |
1.70%
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10.31%
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6.42%
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| Mid Cap Core Portfolio I - Class A |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Mid Cap Core Portfolio I, Class A - Load
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| Average Annual Return, Percent |
(11.62%)
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12.65%
|
7.99%
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| Small Cap Core Portfolio I - Class A |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Small Cap Core Portfolio I, Class A - Load
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| Average Annual Return, Percent |
(7.84%)
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8.90%
|
5.08%
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| Without Sales Load [Member] | International Portfolio I - Class A |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
International Portfolio I, Class A - No Load
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| Average Annual Return, Percent |
6.61%
|
8.07%
|
0.55%
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| Without Sales Load [Member] | Large Cap Core Portfolio I - Class A |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Large Cap Core Portfolio I, Class A - No Load
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| Average Annual Return, Percent |
4.64%
|
14.89%
|
9.82%
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| Without Sales Load [Member] | Large Cap Core Portfolio I - Class L |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Large Cap Core Portfolio I, Class L - No Load
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| Average Annual Return, Percent |
4.62%
|
14.68%
|
9.51%
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| Without Sales Load [Member] | Large Cap Growth Portfolio I - Class A |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Large Cap Growth Portfolio I, Class A - No Load
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| Average Annual Return, Percent |
3.69%
|
15.56%
|
12.30%
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| Without Sales Load [Member] | Large Cap Growth Portfolio I - Class L |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Large Cap Growth Portfolio I, Class L - No Load
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| Average Annual Return, Percent |
3.68%
|
15.36%
|
11.98%
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| Without Sales Load [Member] | Large Cap Value Portfolio - Class A |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Large Cap Value Portfolio I, Class A - No Load
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| Average Annual Return, Percent |
7.07%
|
11.44%
|
6.97%
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| Without Sales Load [Member] | Large Cap Value Portfolio I - Class L |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Large Cap Value Portfolio I, Class L - No Load
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| Average Annual Return, Percent |
7.07%
|
11.25%
|
6.67%
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| Without Sales Load [Member] | Mid Cap Core Portfolio I - Class A |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Mid Cap Core Portfolio I, Class A - No Load
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| Average Annual Return, Percent |
(6.98%)
|
13.80%
|
8.54%
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| Without Sales Load [Member] | Mid Cap Core Portfolio I - Class L |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Mid Cap Core Portfolio I, Class L - No Load
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| Average Annual Return, Percent |
(6.96%)
|
13.60%
|
8.23%
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| Without Sales Load [Member] | Small Cap Core Portfolio I - Class A |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Small Cap Core Portfolio I, Class A - No Load
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| Average Annual Return, Percent |
(3.00%)
|
10.02%
|
5.62%
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| MSCI EAFE Net Index [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
MSCI EAFE Net Index
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| Average Annual Return, Percent |
4.88%
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11.77%
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5.40%
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| S&P 500 Total Return Index |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
S&P 500 Total Return Index
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| Average Annual Return, Percent |
8.25%
|
18.59%
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12.50%
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| Russell 1000 Growth Total Return Index [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Russell 1000 Growth Total Return Index
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| Average Annual Return, Percent |
7.72%
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20.08%
|
15.12%
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| Russell 1000 Value Total Return Index [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Russell 1000 Value Total Return Index
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| Average Annual Return, Percent |
7.18%
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16.15%
|
8.79%
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| Russell Midcap Index [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Russell Midcap Index
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| Average Annual Return, Percent |
2.59%
|
16.28%
|
8.82%
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| Russell 200 Index TR [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Russell 200 Index TR
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| Average Annual Return, Percent |
(4.01%)
|
13.27%
|
6.30%
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