v3.25.2
Shareholder Report, Holdings (Details)
Jun. 30, 2025
C000009527 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.52%
C000009527 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.44%
C000009527 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.74%
C000009527 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.41%
C000009527 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.90%
C000009529 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.52%
C000009529 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.44%
C000009529 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.74%
C000009529 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.41%
C000009529 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.90%
C000009530 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.52%
C000009530 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.44%
C000009530 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.74%
C000009530 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.41%
C000009530 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.90%
C000009531 [Member] | Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 54.01%
C000009531 [Member] | Fannie Mae Pools [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.53%
C000009531 [Member] | SBA Pools [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.96%
C000009531 [Member] | Freddie Mac Pools [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000009531 [Member] | Ginnie Mae Pools [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000009533 [Member] | Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 54.01%
C000009533 [Member] | Fannie Mae Pools [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.53%
C000009533 [Member] | SBA Pools [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.96%
C000009533 [Member] | Freddie Mac Pools [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000009533 [Member] | Ginnie Mae Pools [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000009534 [Member] | Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 54.01%
C000009534 [Member] | Fannie Mae Pools [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.53%
C000009534 [Member] | SBA Pools [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.96%
C000009534 [Member] | Freddie Mac Pools [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000009534 [Member] | Ginnie Mae Pools [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000009538 [Member] | Repurchase Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 69.79%
C000009538 [Member] | Federal Home Loan Bank [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.01%
C000009538 [Member] | Federal Farm Credit Bank [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.38%
C000009538 [Member] | Fannie Mae [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.49%
C000009536 [Member] | Repurchase Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 69.79%
C000009536 [Member] | Federal Home Loan Bank [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.01%
C000009536 [Member] | Federal Farm Credit Bank [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.38%
C000009536 [Member] | Fannie Mae [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.49%
C000009537 [Member] | Repurchase Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 69.79%
C000009537 [Member] | Federal Home Loan Bank [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.01%
C000009537 [Member] | Federal Farm Credit Bank [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.38%
C000009537 [Member] | Fannie Mae [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.49%
C000009539 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.19%
C000009539 [Member] | Insurance Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.50%
C000009539 [Member] | Banks [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 45.01%
C000009539 [Member] | Consumer Finance [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.65%
C000009539 [Member] | Capital Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.65%
C000009541 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.19%
C000009541 [Member] | Insurance Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.50%
C000009541 [Member] | Banks [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 45.01%
C000009541 [Member] | Consumer Finance [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.65%
C000009541 [Member] | Capital Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.65%
C000009542 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.19%
C000009542 [Member] | Insurance Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.50%
C000009542 [Member] | Banks [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 45.01%
C000009542 [Member] | Consumer Finance [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.65%
C000009542 [Member] | Capital Markets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.65%
C000009543 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.92%
C000009543 [Member] | Mortgages [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.99%
C000009543 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.97%
C000009543 [Member] | Common Stock [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 78.00%
C000009543 [Member] | Small Business Administration [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.53%
C000009545 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.92%
C000009545 [Member] | Mortgages [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.99%
C000009545 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.97%
C000009545 [Member] | Common Stock [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 78.00%
C000009545 [Member] | Small Business Administration [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.53%
C000009546 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.92%
C000009546 [Member] | Mortgages [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.99%
C000009546 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.97%
C000009546 [Member] | Common Stock [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 78.00%
C000009546 [Member] | Small Business Administration [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.53%
C000009547 [Member] | Specialized REITs [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.27%
C000009547 [Member] | Residential REITs [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.95%
C000009547 [Member] | Office REITs [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 17.94%
C000009547 [Member] | Industrial REITs [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.37%
C000009547 [Member] | Health Care REITs [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.17%
C000009549 [Member] | Specialized REITs [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.27%
C000009549 [Member] | Residential REITs [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.95%
C000009549 [Member] | Office REITs [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 17.94%
C000009549 [Member] | Industrial REITs [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.37%
C000009549 [Member] | Health Care REITs [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.17%
C000009550 [Member] | Specialized REITs [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.27%
C000009550 [Member] | Residential REITs [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.95%
C000009550 [Member] | Office REITs [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 17.94%
C000009550 [Member] | Industrial REITs [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.37%
C000009550 [Member] | Health Care REITs [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.17%