v3.26.1
Shareholder Report, Holdings (Details)
Jun. 30, 2026
C000028838 | US Foods Holding Corp. - ABFR_912008109  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000028838 | Hanover Insurance Group, Inc. (The) - ABFR_410867105  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000028838 | BorgWarner, Inc. - ABFR_099724106  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000028838 | Reliance, Inc. - ABFR_759509102  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000028838 | Regal Rexnord Corp. - ABFR_758750103  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000028838 | F5, Inc. - ABFR_315616102  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028838 | IDACORP, Inc. - ABFR_451107106  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028838 | UMB Financial Corp. - ABFR_902788108  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028838 | Tenet Healthcare Corp. - ABFR_88033G407  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028838 | Everest Group Ltd. - ABFR_G3223R108  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000028838 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 23.30%
C000028838 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 16.50%
C000028838 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 12.80%
C000028838 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 11.70%
C000028838 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 9.30%
C000028838 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000028838 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000028838 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000028838 | SectorUtilities  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000028838 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000028838 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000028839 | US Foods Holding Corp. - ABFR_912008109  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000028839 | Hanover Insurance Group, Inc. (The) - ABFR_410867105  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000028839 | BorgWarner, Inc. - ABFR_099724106  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000028839 | Reliance, Inc. - ABFR_759509102  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000028839 | Regal Rexnord Corp. - ABFR_758750103  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000028839 | F5, Inc. - ABFR_315616102  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028839 | IDACORP, Inc. - ABFR_451107106  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028839 | UMB Financial Corp. - ABFR_902788108  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028839 | Tenet Healthcare Corp. - ABFR_88033G407  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028839 | Everest Group Ltd. - ABFR_G3223R108  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000028839 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 23.30%
C000028839 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 16.50%
C000028839 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 12.80%
C000028839 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 11.70%
C000028839 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 9.30%
C000028839 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000028839 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000028839 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000028839 | SectorUtilities  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000028839 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000028839 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000098721 | NVIDIA Corp. - ABFR_67066G104  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000098721 | Apple, Inc. - ABFR_037833100  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000098721 | U.S. Treasury Notes, 2.25 - ABFR_9128283F5  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000098721 | Microsoft Corp. - ABFR_594918104  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000098721 | Amazon.com, Inc. - ABFR_023135106  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000098721 | Alphabet, Inc. - ABFR_02079K305  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000098721 | Broadcom, Inc. - ABFR_11135F101  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000098721 | U.S. Treasury Notes, 1 - ABFR_91282CCR0  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000098721 | Alphabet, Inc. - ABFR_02079K107  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000098721 | U.S. Treasury Notes, 4.25 - ABFR_91282CQF1  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000098721 | Asset Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000098721 | 17338309  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000098721 | AssetCommon Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 63.10%
C000098721 | AssetGovernments - Treasuries  
Holdings [Line Items]  
Percent of Net Asset Value 34.10%
C000098721 | AssetAgencies  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000098721 | AssetPurchased Options - Puts  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000098721 | AssetRights  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000098721 | AssetWarrants  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000098722 | NVIDIA Corp. - ABFR_67066G104  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000098722 | Apple, Inc. - ABFR_037833100  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000098722 | U.S. Treasury Notes, 2.25 - ABFR_9128283F5  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000098722 | Microsoft Corp. - ABFR_594918104  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000098722 | Amazon.com, Inc. - ABFR_023135106  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000098722 | Alphabet, Inc. - ABFR_02079K305  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000098722 | Broadcom, Inc. - ABFR_11135F101  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000098722 | U.S. Treasury Notes, 1 - ABFR_91282CCR0  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000098722 | Alphabet, Inc. - ABFR_02079K107  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000098722 | U.S. Treasury Notes, 4.25 - ABFR_91282CQF1  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000098722 | Asset Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000098722 | 17338309  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000098722 | AssetCommon Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 63.10%
C000098722 | AssetGovernments - Treasuries  
Holdings [Line Items]  
Percent of Net Asset Value 34.10%
C000098722 | AssetAgencies  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000098722 | AssetPurchased Options - Puts  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000098722 | AssetRights  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000098722 | AssetWarrants  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000028862 | Amazon.com, Inc. - ABFR_023135106  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028862 | Alphabet, Inc. - ABFR_02079K107  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000028862 | Berkshire Hathaway, Inc. - ABFR_084670702  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000028862 | RTX Corp. - ABFR_75513E101  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000028862 | JPMorgan Chase & Co. - ABFR_46625H100  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000028862 | Johnson & Johnson - ABFR_478160104  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000028862 | Philip Morris International, Inc. - ABFR_718172109  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000028862 | Cisco Systems, Inc. - ABFR_17275R102  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000028862 | UnitedHealth Group, Inc. - ABFR_91324P102  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000028862 | Taiwan Semiconductor Manufacturing Co., Ltd. - ABFR_874039100  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000028862 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 18.00%
C000028862 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 16.30%
C000028862 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 15.30%
C000028862 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000028862 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 13.50%
C000028862 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000028862 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000028862 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000028862 | SectorUtilities  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000028862 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000028862 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000028862 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000028863 | Amazon.com, Inc. - ABFR_023135106  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028863 | Alphabet, Inc. - ABFR_02079K107  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000028863 | Berkshire Hathaway, Inc. - ABFR_084670702  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000028863 | RTX Corp. - ABFR_75513E101  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000028863 | JPMorgan Chase & Co. - ABFR_46625H100  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000028863 | Johnson & Johnson - ABFR_478160104  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000028863 | Philip Morris International, Inc. - ABFR_718172109  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000028863 | Cisco Systems, Inc. - ABFR_17275R102  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000028863 | UnitedHealth Group, Inc. - ABFR_91324P102  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000028863 | Taiwan Semiconductor Manufacturing Co., Ltd. - ABFR_874039100  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000028863 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 18.00%
C000028863 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 16.30%
C000028863 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 15.30%
C000028863 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000028863 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 13.50%
C000028863 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000028863 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000028863 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000028863 | SectorUtilities  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000028863 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000028863 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000028863 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000028852 | iShares Core S&P 500 ETF - ABFR_464287200  
Holdings [Line Items]  
Percent of Net Asset Value 35.20%
C000028852 | iShares Core MSCI EAFE ETF - ABFR_46432F842  
Holdings [Line Items]  
Percent of Net Asset Value 15.20%
C000028852 | iShares Core U.S. Aggregate Bond ETF - ABFR_464287226  
Holdings [Line Items]  
Percent of Net Asset Value 15.20%
C000028852 | Vanguard Total Bond Market ETF - ABFR_921937835  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000028852 | iShares Core MSCI Emerging Markets ETF - ABFR_46434G103  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000028852 | U.S. Treasury Inflation Index, 0.125 - ABFR_91282CDX6  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000028852 | S&P 500 Index - ABFR_AW54346  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000028852 | Vanguard Real Estate ETF - ABFR_922908553  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028852 | Vanguard Mid-Cap ETF - ABFR_922908629  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000028852 | S&P 500 Index - ABFR_AV23792  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000028852 | Asset Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000028852 | 17343387  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000028852 | AssetCommon Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000028852 | AssetPurchased Options - Puts  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000028852 | AssetInvestment Companies  
Holdings [Line Items]  
Percent of Net Asset Value 92.40%
C000028852 | AssetInflation-Linked Securities  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000028852 | AssetPurchased Options - Calls  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000028853 | iShares Core S&P 500 ETF - ABFR_464287200  
Holdings [Line Items]  
Percent of Net Asset Value 35.20%
C000028853 | iShares Core MSCI EAFE ETF - ABFR_46432F842  
Holdings [Line Items]  
Percent of Net Asset Value 15.20%
C000028853 | iShares Core U.S. Aggregate Bond ETF - ABFR_464287226  
Holdings [Line Items]  
Percent of Net Asset Value 15.20%
C000028853 | Vanguard Total Bond Market ETF - ABFR_921937835  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000028853 | iShares Core MSCI Emerging Markets ETF - ABFR_46434G103  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000028853 | U.S. Treasury Inflation Index, 0.125 - ABFR_91282CDX6  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000028853 | S&P 500 Index - ABFR_AW54346  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000028853 | Vanguard Real Estate ETF - ABFR_922908553  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028853 | Vanguard Mid-Cap ETF - ABFR_922908629  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000028853 | S&P 500 Index - ABFR_AV23792  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000028853 | Asset Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000028853 | 17343387  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000028853 | AssetCommon Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000028853 | AssetPurchased Options - Puts  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000028853 | AssetInvestment Companies  
Holdings [Line Items]  
Percent of Net Asset Value 92.40%
C000028853 | AssetInflation-Linked Securities  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000028853 | AssetPurchased Options - Calls  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000028828 | Tokyo Electron Ltd. - ABFR_689567006  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000028828 | Shell PLC - ABFR_BP6MXT901  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000028828 | Roche Holding AG - ABFR_ACI38LVK6  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000028828 | Sony Group Corp. - ABFR_682150008  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000028828 | Resona Holdings, Inc. - ABFR_642155907  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000028828 | Taiwan Semiconductor Manufacturing Co., Ltd. - ABFR_688910900  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028828 | Airbus SE - ABFR_401225909  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000028828 | Industria de Diseno Textil SA - ABFR_ACI08XL68  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000028828 | Anheuser-Busch InBev SA/NV - ABFR_ACI0PX3F9  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000028828 | Novo Nordisk A/S - ABFR_BP6KMJ909  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000028828 | Country SummaryJapan  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
C000028828 | Country SummaryUnited Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 16.30%
C000028828 | Country SummaryFrance  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000028828 | Country SummaryUnited States  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000028828 | Country SummaryItaly  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000028828 | Country SummaryNetherlands  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000028828 | Country SummaryDenmark  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000028828 | Country SummarySpain  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000028828 | Country SummaryHong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000028828 | Country SummarySwitzerland  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000028828 | Country SummaryGermany  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000028828 | Country SummaryTaiwan  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028828 | Country SummaryBelgium  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000028828 | Country SummarySouth Africa  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000028828 | Country SummarySouth Korea  
Holdings [Line Items]  
Percent of Net Asset Value 9.40%
C000028828 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
C000028828 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 23.40%
C000028828 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000028828 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
C000028828 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 10.10%
C000028828 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000028828 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000028828 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000028828 | SectorUtilities  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000028828 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000028828 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028828 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000028828 | North America  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028829 | Tokyo Electron Ltd. - ABFR_689567006  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000028829 | Shell PLC - ABFR_BP6MXT901  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000028829 | Roche Holding AG - ABFR_ACI38LVK6  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000028829 | Sony Group Corp. - ABFR_682150008  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000028829 | Resona Holdings, Inc. - ABFR_642155907  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000028829 | Taiwan Semiconductor Manufacturing Co., Ltd. - ABFR_688910900  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028829 | Airbus SE - ABFR_401225909  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000028829 | Industria de Diseno Textil SA - ABFR_ACI08XL68  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000028829 | Anheuser-Busch InBev SA/NV - ABFR_ACI0PX3F9  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000028829 | Novo Nordisk A/S - ABFR_BP6KMJ909  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000028829 | Country SummaryJapan  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
C000028829 | Country SummaryUnited Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 16.30%
C000028829 | Country SummaryFrance  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000028829 | Country SummaryUnited States  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000028829 | Country SummaryItaly  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000028829 | Country SummaryNetherlands  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000028829 | Country SummaryDenmark  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000028829 | Country SummarySpain  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000028829 | Country SummaryHong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000028829 | Country SummarySwitzerland  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000028829 | Country SummaryGermany  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000028829 | Country SummaryTaiwan  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028829 | Country SummaryBelgium  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000028829 | Country SummarySouth Africa  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000028829 | Country SummarySouth Korea  
Holdings [Line Items]  
Percent of Net Asset Value 9.40%
C000028829 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
C000028829 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 23.40%
C000028829 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000028829 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
C000028829 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 10.10%
C000028829 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000028829 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000028829 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000028829 | SectorUtilities  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000028829 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000028829 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028829 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000028829 | North America  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028830 | NVIDIA Corp. - ABFR_67066G104  
Holdings [Line Items]  
Percent of Net Asset Value 10.10%
C000028830 | Apple, Inc. - ABFR_037833100  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000028830 | Microsoft Corp. - ABFR_594918104  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000028830 | Amazon.com, Inc. - ABFR_023135106  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000028830 | Broadcom, Inc. - ABFR_11135F101  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000028830 | Alphabet, Inc. - ABFR_02079K107  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
C000028830 | Taiwan Semiconductor Manufacturing Co., Ltd. - ABFR_874039100  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000028830 | Meta Platforms, Inc. - ABFR_30303M102  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000028830 | Visa, Inc. - ABFR_92826C839  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000028830 | Eli Lilly & Co. - ABFR_532457108  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000028830 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000028830 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000028830 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 40.00%
C000028830 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000028830 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000028830 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000028830 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000028830 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000028830 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 16.20%
C000028831 | NVIDIA Corp. - ABFR_67066G104  
Holdings [Line Items]  
Percent of Net Asset Value 10.10%
C000028831 | Apple, Inc. - ABFR_037833100  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000028831 | Microsoft Corp. - ABFR_594918104  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000028831 | Amazon.com, Inc. - ABFR_023135106  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000028831 | Broadcom, Inc. - ABFR_11135F101  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000028831 | Alphabet, Inc. - ABFR_02079K107  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
C000028831 | Taiwan Semiconductor Manufacturing Co., Ltd. - ABFR_874039100  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000028831 | Meta Platforms, Inc. - ABFR_30303M102  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000028831 | Visa, Inc. - ABFR_92826C839  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000028831 | Eli Lilly & Co. - ABFR_532457108  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000028831 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000028831 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000028831 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 40.00%
C000028831 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000028831 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000028831 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000028831 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000028831 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000028831 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 16.20%
C000028836 | Moog, Inc. - ABFR_615394202  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000028836 | BrightSpring Health Services, Inc. - ABFR_10950A106  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000028836 | ESCO Technologies, Inc. - ABFR_296315104  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000028836 | Chefs' Warehouse, Inc. (The) - ABFR_163086101  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000028836 | Ultra Clean Holdings, Inc. - ABFR_90385V107  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000028836 | SiTime Corp. - ABFR_82982T106  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000028836 | Semtech Corp. - ABFR_816850101  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028836 | Guardant Health, Inc. - ABFR_40131M109  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028836 | FirstCash Holdings, Inc. - ABFR_33768G107  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028836 | Glaukos Corp. - ABFR_377322102  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028836 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 23.40%
C000028836 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 9.40%
C000028836 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 22.50%
C000028836 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 9.30%
C000028836 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 25.80%
C000028836 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000028836 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000028836 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000028836 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000028836 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000028837 | Moog, Inc. - ABFR_615394202  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000028837 | BrightSpring Health Services, Inc. - ABFR_10950A106  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000028837 | ESCO Technologies, Inc. - ABFR_296315104  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000028837 | Chefs' Warehouse, Inc. (The) - ABFR_163086101  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000028837 | Ultra Clean Holdings, Inc. - ABFR_90385V107  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000028837 | SiTime Corp. - ABFR_82982T106  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000028837 | Semtech Corp. - ABFR_816850101  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028837 | Guardant Health, Inc. - ABFR_40131M109  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028837 | FirstCash Holdings, Inc. - ABFR_33768G107  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028837 | Glaukos Corp. - ABFR_377322102  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028837 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 23.40%
C000028837 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 9.40%
C000028837 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 22.50%
C000028837 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 9.30%
C000028837 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 25.80%
C000028837 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000028837 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000028837 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000028837 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000028837 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000028860 | NVIDIA Corp. - ABFR_67066G104  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000028860 | Apple, Inc. - ABFR_037833100  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000028860 | Alphabet, Inc. - ABFR_02079K305  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000028860 | Broadcom, Inc. - ABFR_11135F101  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000028860 | Taiwan Semiconductor Manufacturing Co., Ltd. - ABFR_688910900  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000028860 | Rockwell Automation, Inc. - ABFR_773903109  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000028860 | Galderma Group AG - ABFR_ACI2N9FJ9  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000028860 | Cummins, Inc. - ABFR_231021106  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028860 | NXP Semiconductors NV - ABFR_N6596X109  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028860 | Emerson Electric Co. - ABFR_291011104  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028860 | Country SummaryJapan  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000028860 | Country SummaryUnited Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000028860 | Country SummaryUnited States  
Holdings [Line Items]  
Percent of Net Asset Value 55.70%
C000028860 | Country SummaryItaly  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000028860 | Country SummaryNetherlands  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000028860 | Country SummaryHong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000028860 | Country SummarySwitzerland  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000028860 | Country SummaryTaiwan  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000028860 | Country SummarySouth Korea  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028860 | Country SummaryBrazil  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028860 | Country SummaryChina  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028860 | Country SummaryCanada  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000028860 | Country SummaryAustria  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000028860 | Country SummaryFinland  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000028860 | Country SummaryIndia  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000028860 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 20.50%
C000028860 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000028860 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 32.80%
C000028860 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000028860 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 11.50%
C000028860 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000028860 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000028860 | SectorUtilities  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000028860 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000028860 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000028860 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000028860 | North America  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000028861 | NVIDIA Corp. - ABFR_67066G104  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000028861 | Apple, Inc. - ABFR_037833100  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000028861 | Alphabet, Inc. - ABFR_02079K305  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000028861 | Broadcom, Inc. - ABFR_11135F101  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000028861 | Taiwan Semiconductor Manufacturing Co., Ltd. - ABFR_688910900  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000028861 | Rockwell Automation, Inc. - ABFR_773903109  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000028861 | Galderma Group AG - ABFR_ACI2N9FJ9  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000028861 | Cummins, Inc. - ABFR_231021106  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028861 | NXP Semiconductors NV - ABFR_N6596X109  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028861 | Emerson Electric Co. - ABFR_291011104  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000028861 | Country SummaryJapan  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000028861 | Country SummaryUnited Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000028861 | Country SummaryUnited States  
Holdings [Line Items]  
Percent of Net Asset Value 55.70%
C000028861 | Country SummaryItaly  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000028861 | Country SummaryNetherlands  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000028861 | Country SummaryHong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000028861 | Country SummarySwitzerland  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000028861 | Country SummaryTaiwan  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000028861 | Country SummarySouth Korea  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028861 | Country SummaryBrazil  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028861 | Country SummaryChina  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000028861 | Country SummaryCanada  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000028861 | Country SummaryAustria  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000028861 | Country SummaryFinland  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000028861 | Country SummaryIndia  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000028861 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 20.50%
C000028861 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000028861 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 32.80%
C000028861 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000028861 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 11.50%
C000028861 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000028861 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000028861 | SectorUtilities  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000028861 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000028861 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000028861 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000028861 | North America  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%