v3.26.3
Shareholder Report, Holdings (Details)
Aug. 31, 2026
C000008885 [Member] | Short Term Investments Quality [Member]  
Holdings [Line Items]  
Percent of Total Investments 3.00%
C000008885 [Member] | Moody's, Aaa Rating [Member]  
Holdings [Line Items]  
Percent of Total Investments 6.70%
C000008885 [Member] | US Government Debt Securities Quality [Member]  
Holdings [Line Items]  
Percent of Total Investments 30.40%
C000008885 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Total Investments 0.60%
C000008885 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Total Investments 9.90%
C000008885 [Member] | Standard & Poor's, A Rating [Member]  
Holdings [Line Items]  
Percent of Total Investments 11.70%
C000008885 [Member] | Standard & Poor's, AA Rating [Member]  
Holdings [Line Items]  
Percent of Total Investments 2.80%
C000008885 [Member] | US Government Corporations and Agencies Securities Quality [Member]  
Holdings [Line Items]  
Percent of Total Investments 29.20%
C000008885 [Member] | Mortgage Backed Security Issued by US Government Sponsored Enterprise Quality [Member]  
Holdings [Line Items]  
Percent of Total Investments 5.70%
C000008885 [Member] | Foreign government obligations [Member]  
Holdings [Line Items]  
Percent of Total Investments 0.90%
C000008885 [Member] | Mortgage-Backed Securities, Issued by Private Enterprises [Member]  
Holdings [Line Items]  
Percent of Total Investments 1.20%
C000008885 [Member] | Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member]  
Holdings [Line Items]  
Percent of Total Investments 5.70%
C000008885 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Total Investments 5.30%
C000008885 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Total Investments 3.00%
C000008885 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Total Investments 29.20%
C000008885 [Member] | Municipal Bonds [Member]  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000008885 [Member] | US Government Debt Securities [Member]  
Holdings [Line Items]  
Percent of Total Investments 30.40%
C000008885 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Total Investments 24.20%
C000073278 [Member] | Corpay Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000073278 [Member] | Phillips 66 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000073278 [Member] | Lamb Weston Holdings Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000073278 [Member] | Voya Financial Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000073278 [Member] | StandardAero Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000073278 [Member] | Fortive Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000073278 [Member] | Concentra Group Holdings Parent Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000073278 [Member] | Baker Hughes Company [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000073278 [Member] | Lazard Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000073278 [Member] | Ameren Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000073278 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000073278 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000073278 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000073278 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
C000073278 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000073278 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000073278 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000073278 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000073278 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
C000073278 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000073278 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000095456 [Member] | Meta Platforms Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000095456 [Member] | Apple Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000095456 [Member] | Cencora Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000095456 [Member] | Advanced Micro Devices Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000095456 [Member] | CenterPoint Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000095456 [Member] | U S Treasury Note 3 500 02 28 2031 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000095456 [Member] | U S Treasury Note 4 250 06 30 2033 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000095456 [Member] | NVIDIA Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000095456 [Member] | Amazon com Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000095456 [Member] | Microsoft Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000095456 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000095456 [Member] | Term loans [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000095456 [Member] | Common Stock [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 61.30%
C000095456 [Member] | US Government Debt Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000095456 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000173477 [Member] | Taiwan Semiconductor Manufacturing Company Ltd [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000173477 [Member] | Samsung Electronics Company Ltd [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000173477 [Member] | SK Hynix Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000173477 [Member] | ASML Holding NV [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000173477 [Member] | HSBC Holdings PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000173477 [Member] | Tencent Holdings Ltd [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000173477 [Member] | Roche Holding AG [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000173477 [Member] | Royal Bank of Canada [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000173477 [Member] | Novartis AG [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000173477 [Member] | Shell PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000173477 [Member] | Other Countries [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 29.30%
C000173477 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000173477 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000173477 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.40%
C000173477 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.80%
C000173477 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000173477 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000173477 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000173477 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000173477 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000173477 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.30%
C000173477 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000173477 [Member] | AUSTRALIA  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000173477 [Member] | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 8.20%
C000173477 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000173477 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000173477 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000173477 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 13.80%
C000173477 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000173477 [Member] | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000173477 [Member] | TAIWAN  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
C000173477 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000173477 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000173478 [Member] | Meta Platforms Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000173478 [Member] | Apple Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000173478 [Member] | NVIDIA Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000173478 [Member] | Amazon com Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000173478 [Member] | Microsoft Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000173478 [Member] | Tesla Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000173478 [Member] | Micron Technology Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000173478 [Member] | Alphabet Inc Class C [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000173478 [Member] | Broadcom Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000173478 [Member] | Alphabet Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000173478 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000173478 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000173478 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 37.00%
C000173478 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000173478 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000173478 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000173478 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000173478 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000173478 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000173478 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
C000173478 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000173478 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%