v3.26.1
Shareholder Report, Holdings (Details)
Apr. 30, 2026
C000216485 [Member] | Southern Co The [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40% [1]
C000216485 [Member] | Ferrovial SE [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60% [1]
C000216485 [Member] | American Electric Power Co Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70% [1]
C000216485 [Member] | SSE plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70% [1]
C000216485 [Member] | PPL Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80% [1]
C000216485 [Member] | WEC Energy Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.00% [1]
C000216485 [Member] | Atmos Energy Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10% [1]
C000216485 [Member] | Enbridge Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40% [1]
C000216485 [Member] | Canadian National Railway Co [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50% [1]
C000216485 [Member] | Xcel Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50% [1]
C000216485 [Member] | Other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000216485 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 58.60%
C000216485 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000216485 [Member] | SPAIN  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000216485 [Member] | NEW ZEALAND  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000216485 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000216485 [Member] | MEXICO  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000216485 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000216485 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000216485 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000216485 [Member] | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000216484 [Member] | Southern Co The [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40% [2]
C000216484 [Member] | Ferrovial SE [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60% [2]
C000216484 [Member] | American Electric Power Co Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70% [2]
C000216484 [Member] | SSE plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70% [2]
C000216484 [Member] | PPL Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80% [2]
C000216484 [Member] | WEC Energy Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.00% [2]
C000216484 [Member] | Atmos Energy Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10% [2]
C000216484 [Member] | Enbridge Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40% [2]
C000216484 [Member] | Canadian National Railway Co [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50% [2]
C000216484 [Member] | Xcel Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50% [2]
C000216484 [Member] | Other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000216484 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 58.60%
C000216484 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000216484 [Member] | SPAIN  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000216484 [Member] | NEW ZEALAND  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000216484 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000216484 [Member] | MEXICO  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000216484 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000216484 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000216484 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000216484 [Member] | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000216483 [Member] | Southern Co The [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40% [3]
C000216483 [Member] | Ferrovial SE [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60% [3]
C000216483 [Member] | American Electric Power Co Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70% [3]
C000216483 [Member] | SSE plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70% [3]
C000216483 [Member] | PPL Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80% [3]
C000216483 [Member] | WEC Energy Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.00% [3]
C000216483 [Member] | Atmos Energy Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10% [3]
C000216483 [Member] | Enbridge Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40% [3]
C000216483 [Member] | Canadian National Railway Co [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50% [3]
C000216483 [Member] | Xcel Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50% [3]
C000216483 [Member] | Other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000216483 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 58.60%
C000216483 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000216483 [Member] | SPAIN  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000216483 [Member] | NEW ZEALAND  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000216483 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000216483 [Member] | MEXICO  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000216483 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000216483 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000216483 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000216483 [Member] | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000216482 [Member] | Southern Co The [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40% [4]
C000216482 [Member] | Ferrovial SE [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60% [4]
C000216482 [Member] | American Electric Power Co Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70% [4]
C000216482 [Member] | SSE plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70% [4]
C000216482 [Member] | PPL Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80% [4]
C000216482 [Member] | WEC Energy Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.00% [4]
C000216482 [Member] | Atmos Energy Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10% [4]
C000216482 [Member] | Enbridge Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40% [4]
C000216482 [Member] | Canadian National Railway Co [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50% [4]
C000216482 [Member] | Xcel Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50% [4]
C000216482 [Member] | Other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000216482 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 58.60%
C000216482 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000216482 [Member] | SPAIN  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000216482 [Member] | NEW ZEALAND  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000216482 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000216482 [Member] | MEXICO  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000216482 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000216482 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000216482 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000216482 [Member] | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000216486 [Member] | Southern Co The [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40% [5]
C000216486 [Member] | Ferrovial SE [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60% [5]
C000216486 [Member] | American Electric Power Co Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70% [5]
C000216486 [Member] | SSE plc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70% [5]
C000216486 [Member] | PPL Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80% [5]
C000216486 [Member] | WEC Energy Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.00% [5]
C000216486 [Member] | Atmos Energy Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10% [5]
C000216486 [Member] | Enbridge Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40% [5]
C000216486 [Member] | Canadian National Railway Co [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50% [5]
C000216486 [Member] | Xcel Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50% [5]
C000216486 [Member] | Other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000216486 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 58.60%
C000216486 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000216486 [Member] | SPAIN  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000216486 [Member] | NEW ZEALAND  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000216486 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000216486 [Member] | MEXICO  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000216486 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000216486 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000216486 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000216486 [Member] | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000216492 [Member] | Welltower Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.40% [6]
C000216492 [Member] | Equinix Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.10% [6]
C000216492 [Member] | American Tower Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80% [6]
C000216492 [Member] | Prologis Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.70% [6]
C000216492 [Member] | Simon Property Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.40% [6]
C000216492 [Member] | Iron Mountain Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50% [6]
C000216492 [Member] | CubeSmart [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20% [6]
C000216492 [Member] | EastGroup Properties Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10% [6]
C000216492 [Member] | Brixmor Property Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00% [6]
C000216492 [Member] | Equity Residential [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90% [6]
C000216492 [Member] | Industrial Property [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
C000216492 [Member] | Hotel [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000216492 [Member] | Unclassified Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000216492 [Member] | Healthcare Facilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.60%
C000216492 [Member] | Technology Datacenters [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.60%
C000216492 [Member] | Residential [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.40%
C000216492 [Member] | Technology Towers [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000216492 [Member] | Net Lease Properties [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000216492 [Member] | Enclosed Malls [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
C000216492 [Member] | Self Storage Property [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000216492 [Member] | Community Shopping Centers [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000216487 [Member] | Welltower Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.40% [7]
C000216487 [Member] | Equinix Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.10% [7]
C000216487 [Member] | American Tower Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80% [7]
C000216487 [Member] | Prologis Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.70% [7]
C000216487 [Member] | Simon Property Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.40% [7]
C000216487 [Member] | Iron Mountain Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50% [7]
C000216487 [Member] | CubeSmart [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20% [7]
C000216487 [Member] | EastGroup Properties Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10% [7]
C000216487 [Member] | Brixmor Property Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00% [7]
C000216487 [Member] | Equity Residential [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90% [7]
C000216487 [Member] | Industrial Property [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
C000216487 [Member] | Hotel [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000216487 [Member] | Unclassified Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000216487 [Member] | Healthcare Facilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.60%
C000216487 [Member] | Technology Datacenters [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.60%
C000216487 [Member] | Residential [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.40%
C000216487 [Member] | Technology Towers [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000216487 [Member] | Net Lease Properties [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000216487 [Member] | Enclosed Malls [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
C000216487 [Member] | Self Storage Property [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000216487 [Member] | Community Shopping Centers [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000216489 [Member] | Welltower Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.40% [8]
C000216489 [Member] | Equinix Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.10% [8]
C000216489 [Member] | American Tower Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80% [8]
C000216489 [Member] | Prologis Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.70% [8]
C000216489 [Member] | Simon Property Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.40% [8]
C000216489 [Member] | Iron Mountain Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50% [8]
C000216489 [Member] | CubeSmart [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20% [8]
C000216489 [Member] | EastGroup Properties Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10% [8]
C000216489 [Member] | Brixmor Property Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00% [8]
C000216489 [Member] | Equity Residential [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90% [8]
C000216489 [Member] | Industrial Property [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
C000216489 [Member] | Hotel [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000216489 [Member] | Unclassified Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000216489 [Member] | Healthcare Facilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.60%
C000216489 [Member] | Technology Datacenters [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.60%
C000216489 [Member] | Residential [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.40%
C000216489 [Member] | Technology Towers [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000216489 [Member] | Net Lease Properties [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000216489 [Member] | Enclosed Malls [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
C000216489 [Member] | Self Storage Property [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000216489 [Member] | Community Shopping Centers [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000216491 [Member] | Welltower Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.40% [9]
C000216491 [Member] | Equinix Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.10% [9]
C000216491 [Member] | American Tower Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80% [9]
C000216491 [Member] | Prologis Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.70% [9]
C000216491 [Member] | Simon Property Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.40% [9]
C000216491 [Member] | Iron Mountain Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50% [9]
C000216491 [Member] | CubeSmart [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20% [9]
C000216491 [Member] | EastGroup Properties Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10% [9]
C000216491 [Member] | Brixmor Property Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00% [9]
C000216491 [Member] | Equity Residential [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90% [9]
C000216491 [Member] | Industrial Property [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
C000216491 [Member] | Hotel [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000216491 [Member] | Unclassified Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000216491 [Member] | Healthcare Facilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.60%
C000216491 [Member] | Technology Datacenters [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.60%
C000216491 [Member] | Residential [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.40%
C000216491 [Member] | Technology Towers [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000216491 [Member] | Net Lease Properties [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000216491 [Member] | Enclosed Malls [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
C000216491 [Member] | Self Storage Property [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000216491 [Member] | Community Shopping Centers [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000216488 [Member] | Welltower Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.40% [10]
C000216488 [Member] | Equinix Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.10% [10]
C000216488 [Member] | American Tower Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80% [10]
C000216488 [Member] | Prologis Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.70% [10]
C000216488 [Member] | Simon Property Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.40% [10]
C000216488 [Member] | Iron Mountain Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50% [10]
C000216488 [Member] | CubeSmart [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20% [10]
C000216488 [Member] | EastGroup Properties Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10% [10]
C000216488 [Member] | Brixmor Property Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00% [10]
C000216488 [Member] | Equity Residential [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90% [10]
C000216488 [Member] | Industrial Property [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
C000216488 [Member] | Hotel [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000216488 [Member] | Unclassified Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000216488 [Member] | Healthcare Facilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.60%
C000216488 [Member] | Technology Datacenters [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.60%
C000216488 [Member] | Residential [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.40%
C000216488 [Member] | Technology Towers [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000216488 [Member] | Net Lease Properties [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000216488 [Member] | Enclosed Malls [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
C000216488 [Member] | Self Storage Property [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000216488 [Member] | Community Shopping Centers [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000221684 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.90%)
C000221684 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 42.50%
C000221684 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000221684 [Member] | Fixed Income Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 54.30%
C000219985 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.90%)
C000219985 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 42.50%
C000219985 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000219985 [Member] | Fixed Income Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 54.30%
C000219987 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.90%)
C000219987 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 42.50%
C000219987 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000219987 [Member] | Fixed Income Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 54.30%
C000219986 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.90%)
C000219986 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 42.50%
C000219986 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000219986 [Member] | Fixed Income Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 54.30%
C000219988 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.90%)
C000219988 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 42.50%
C000219988 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000219988 [Member] | Fixed Income Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 54.30%
C000219998 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (8.70%)
C000219998 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 99.60%
C000219998 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000219999 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (8.70%)
C000219999 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 99.60%
C000219999 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000220000 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (8.70%)
C000220000 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 99.60%
C000220000 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000219997 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (8.70%)
C000219997 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 99.60%
C000219997 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000221686 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (8.70%)
C000221686 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 99.60%
C000221686 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000221687 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.00%)
C000221687 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 62.60%
C000221687 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000221687 [Member] | Fixed Income Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.60%
C000220003 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.00%)
C000220003 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 62.60%
C000220003 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000220003 [Member] | Fixed Income Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.60%
C000220002 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.00%)
C000220002 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 62.60%
C000220002 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000220002 [Member] | Fixed Income Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.60%
C000220001 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.00%)
C000220001 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 62.60%
C000220001 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000220001 [Member] | Fixed Income Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.60%
C000220005 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.00%)
C000220005 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 62.60%
C000220005 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000220005 [Member] | Fixed Income Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.60%
C000220007 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.70%)
C000220007 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 82.40%
C000220007 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000220007 [Member] | Fixed Income Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.80%
C000220008 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.70%)
C000220008 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 82.40%
C000220008 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000220008 [Member] | Fixed Income Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.80%
C000220010 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.70%)
C000220010 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 82.40%
C000220010 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000220010 [Member] | Fixed Income Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.80%
C000220011 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.70%)
C000220011 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 82.40%
C000220011 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000220011 [Member] | Fixed Income Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.80%
C000221688 [Member] | Other Assets Less Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.70%)
C000221688 [Member] | Equity Funds Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 82.40%
C000221688 [Member] | Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000221688 [Member] | Fixed Income Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.80%
[1] Excluding short-term investments
[2] Excluding short-term investments
[3] Excluding short-term investments
[4] Excluding short-term investments
[5] Excluding short-term investments
[6] Excluding short-term investments
[7] Excluding short-term investments
[8] Excluding short-term investments
[9] Excluding short-term investments
[10] Excluding short-term investments