Shareholder Report, Holdings (Details)
|
Jun. 30, 2025 |
| C000012182 | NVIDIA Corp. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
4.50%
|
| C000012182 | Microsoft Corp. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
4.18%
|
| C000012182 | Apple, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
2.43%
|
| C000012182 | Meta Platforms, Inc.Class A |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
2.38%
|
| C000012182 | Booking Holdings, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
2.20%
|
| C000012182 | Amazon.com, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.79%
|
| C000012182 | Alphabet, Inc.Class A |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.71%
|
| C000012182 | Palantir Technologies, Inc.Class A |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.53%
|
| C000012182 | NRG Energy, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.49%
|
| C000012182 | Visa, Inc.Class A |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.47%
|
| C000012182 | Other Investments in Securities |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.89%
|
| C000012182 | Utilities |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
2.91%
|
| C000012182 | Consumer Staples |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
4.35%
|
| C000012182 | Industrials |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
5.64%
|
| C000012182 | Energy |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
7.23%
|
| C000012182 | Communication Services |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
8.49%
|
| C000012182 | Health Care |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
10.54%
|
| C000012182 | Consumer Discretionary |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
13.05%
|
| C000012182 | Financials |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
18.48%
|
| C000012182 | Information Technology |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
27.42%
|
| C000012182 | Common Stocks |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
99.87%
|
| C000012182 | Money Market Fund |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.18%
|
| C000012186 | Sagimet Biosciences, Inc.Class A |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
3.15%
|
| C000012186 | Beauty Health Co. (The) |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
2.56%
|
| C000012186 | Douglas Elliman, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
2.24%
|
| C000012186 | Eventbrite, Inc.Class A |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
2.15%
|
| C000012186 | Herc Holdings, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.97%
|
| C000012186 | Hudson Technologies, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.94%
|
| C000012186 | Epsilon Energy, Ltd. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.92%
|
| C000012186 | ON24, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.92%
|
| C000012186 | Civeo Corp. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.88%
|
| C000012186 | OraSure Technologies, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.87%
|
| C000012186 | Other Investments in Securities |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
3.18%
|
| C000012186 | Consumer Staples |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
4.72%
|
| C000012186 | Industrials |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
10.25%
|
| C000012186 | Energy |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
7.22%
|
| C000012186 | Communication Services |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
3.89%
|
| C000012186 | Health Care |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
30.10%
|
| C000012186 | Consumer Discretionary |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
7.65%
|
| C000012186 | Financials |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
19.26%
|
| C000012186 | Information Technology |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
10.30%
|
| C000012186 | Real Estate |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
3.43%
|
| C000012186 | Common Stocks |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
99.22%
|
| C000012186 | Money Market Fund |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.86%
|
| C000012186 | Rights |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.00%
|
| C000012186 | Investments Purchased With Cash Proceeds From Securities Lending |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
6.35%
|
| C000012187 | Aeva Technologies, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.89%
|
| C000012187 | Flotek Industries, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.71%
|
| C000012187 | LifeMD, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.71%
|
| C000012187 | Potbelly Corp. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.69%
|
| C000012187 | Performant Healthcare, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.67%
|
| C000012187 | CompX International, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.66%
|
| C000012187 | Strattec Security Corp. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.65%
|
| C000012187 | Solid Power, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.62%
|
| C000012187 | Tango Therapeutics, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.60%
|
| C000012187 | Perma-Pipe International Holdings, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.59%
|
| C000012187 | Other Investments in Securities |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
2.45%
|
| C000012187 | Consumer Staples |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.91%
|
| C000012187 | Industrials |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
12.29%
|
| C000012187 | Energy |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
4.82%
|
| C000012187 | Communication Services |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
3.50%
|
| C000012187 | Health Care |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
29.59%
|
| C000012187 | Consumer Discretionary |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
13.17%
|
| C000012187 | Financials |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
16.77%
|
| C000012187 | Information Technology |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
11.82%
|
| C000012187 | Materials |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
3.68%
|
| C000012187 | Common Stocks |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
100.05%
|
| C000012187 | Money Market Fund |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.29%
|
| C000012187 | Rights |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.00%
|
| C000012187 | Investments Purchased With Cash Proceeds From Securities Lending |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
14.83%
|
| C000012187 | Warrants |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.03%
|
| C000012190 | Axos Financial, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.44%
|
| C000012190 | SkyWest, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.44%
|
| C000012190 | Enova International, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.35%
|
| C000012190 | WSFS Financial Corp. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.34%
|
| C000012190 | Hancock Whitney Corp. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.28%
|
| C000012190 | Essential Properties Realty Trust, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.27%
|
| C000012190 | City Holding Co. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.26%
|
| C000012190 | Prestige Consumer Healthcare, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.24%
|
| C000012190 | NetScout Systems, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.22%
|
| C000012190 | TEGNA, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.19%
|
| C000012190 | Other Investments in Securities |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
4.75%
|
| C000012190 | Consumer Staples |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
5.43%
|
| C000012190 | Industrials |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
17.01%
|
| C000012190 | Energy |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
3.50%
|
| C000012190 | Health Care |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
5.28%
|
| C000012190 | Consumer Discretionary |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
11.63%
|
| C000012190 | Financials |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
34.15%
|
| C000012190 | Information Technology |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
8.13%
|
| C000012190 | Real Estate |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
6.79%
|
| C000012190 | Materials |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
3.33%
|
| C000012190 | Common Stocks |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
100.01%
|
| C000012190 | Money Market Fund |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.00%
|
| C000012190 | Investments Purchased With Cash Proceeds From Securities Lending |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.32%
|
| C000103073 | SkyWest, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.97%
|
| C000103073 | Tutor Perini Corp. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.20%
|
| C000103073 | TTM Technologies, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.13%
|
| C000103073 | SiriusPoint, Ltd. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.04%
|
| C000103073 | Telephone and Data Systems, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
1.02%
|
| C000103073 | Dana, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.95%
|
| C000103073 | Gulfport Energy Corp. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.84%
|
| C000103073 | Signet Jewelers, Ltd. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.79%
|
| C000103073 | Advance Auto Parts, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.76%
|
| C000103073 | Phinia, Inc. |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.72%
|
| C000103073 | Other Investments in Securities |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.66%
|
| C000103073 | Consumer Staples |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
5.48%
|
| C000103073 | Industrials |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
15.14%
|
| C000103073 | Energy |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
13.75%
|
| C000103073 | Communication Services |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
5.08%
|
| C000103073 | Health Care |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
3.42%
|
| C000103073 | Consumer Discretionary |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
13.03%
|
| C000103073 | Financials |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
33.97%
|
| C000103073 | Information Technology |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
4.31%
|
| C000103073 | Materials |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
5.16%
|
| C000103073 | Common Stocks |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
99.62%
|
| C000103073 | Money Market Fund |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.24%
|
| C000103073 | Rights |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.01%
|
| C000103073 | Investments Purchased With Cash Proceeds From Securities Lending |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
2.39%
|
| C000103073 | Preferred Stock |
|
| Holdings [Line Items] |
|
| Percent of Net Asset Value |
0.00%
|
| C000254224 | Other Countries |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
30.04%
|
| Percent of Net Short Exposure |
28.58%
|
| C000254224 | Utilities |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
2.81%
|
| Percent of Net Short Exposure |
2.21%
|
| C000254224 | Consumer Staples |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
4.50%
|
| Percent of Net Short Exposure |
5.28%
|
| C000254224 | Industrials |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
16.52%
|
| Percent of Net Short Exposure |
14.04%
|
| C000254224 | Energy |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
4.20%
|
| Percent of Net Short Exposure |
3.82%
|
| C000254224 | Communication Services |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
4.83%
|
| Percent of Net Short Exposure |
3.82%
|
| C000254224 | Health Care |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
6.57%
|
| Percent of Net Short Exposure |
4.48%
|
| C000254224 | Consumer Discretionary |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
10.04%
|
| Percent of Net Short Exposure |
10.04%
|
| C000254224 | Financials |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
15.27%
|
| Percent of Net Short Exposure |
15.08%
|
| C000254224 | Information Technology |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
11.02%
|
| Percent of Net Short Exposure |
10.65%
|
| C000254224 | Real Estate |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
3.44%
|
| Percent of Net Short Exposure |
3.56%
|
| C000254224 | Materials |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
7.47%
|
| Percent of Net Short Exposure |
7.86%
|
| C000254224 | Brazil |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
3.65%
|
| Percent of Net Short Exposure |
2.79%
|
| C000254224 | United Kingdom |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
4.24%
|
| Percent of Net Short Exposure |
3.44%
|
| C000254224 | Australia |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
4.41%
|
| Percent of Net Short Exposure |
5.32%
|
| C000254224 | South Korea |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
5.17%
|
| Percent of Net Short Exposure |
4.05%
|
| C000254224 | Canada |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
5.62%
|
| Percent of Net Short Exposure |
6.01%
|
| C000254224 | China |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
6.18%
|
| Percent of Net Short Exposure |
4.90%
|
| C000254224 | Taiwan |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
6.85%
|
| Percent of Net Short Exposure |
6.04%
|
| C000254224 | Japan |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
8.91%
|
| Percent of Net Short Exposure |
8.30%
|
| C000254224 | United States |
|
| Holdings [Line Items] |
|
| Percent of Net Long Exposure |
11.58%
|
| Percent of Net Short Exposure |
11.39%
|