v3.26.1
Shareholder Report, Holdings (Details)
Apr. 30, 2026
C000021257 | Transamerica Core BondFR_89354D106  
Holdings [Line Items]  
Percent of Net Asset Value 37.70%
C000021257 | Transamerica BondFR_893961334  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
C000021257 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 11.40%
C000021257 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000021257 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000021257 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000021257 | Transamerica Inflation OpportunitiesFR_89354D841  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000021257 | Transamerica Long CreditFR_89356M617  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000021257 | Transamerica Emerging Markets DebtFR_893509141  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000021257 | Transamerica BondFR_89354D429  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000021257 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 58.80%
C000021257 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 26.30%
C000021257 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 10.10%
C000021257 | IndustryInternational Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000021257 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000021257 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000021257 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
C000021257 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000021259 | Transamerica Core BondFR_89354D106  
Holdings [Line Items]  
Percent of Net Asset Value 37.70%
C000021259 | Transamerica BondFR_893961334  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
C000021259 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 11.40%
C000021259 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000021259 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000021259 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000021259 | Transamerica Inflation OpportunitiesFR_89354D841  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000021259 | Transamerica Long CreditFR_89356M617  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000021259 | Transamerica Emerging Markets DebtFR_893509141  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000021259 | Transamerica BondFR_89354D429  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000021259 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 58.80%
C000021259 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 26.30%
C000021259 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 10.10%
C000021259 | IndustryInternational Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000021259 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000021259 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000021259 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [2]
C000021259 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000081832 | Transamerica Core BondFR_89354D106  
Holdings [Line Items]  
Percent of Net Asset Value 37.70%
C000081832 | Transamerica BondFR_893961334  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
C000081832 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 11.40%
C000081832 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000081832 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000081832 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000081832 | Transamerica Inflation OpportunitiesFR_89354D841  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000081832 | Transamerica Long CreditFR_89356M617  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000081832 | Transamerica Emerging Markets DebtFR_893509141  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000081832 | Transamerica BondFR_89354D429  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000081832 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 58.80%
C000081832 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 26.30%
C000081832 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 10.10%
C000081832 | IndustryInternational Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000081832 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000081832 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000081832 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [3]
C000081832 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000035460 | Transamerica Core BondFR_89354D106  
Holdings [Line Items]  
Percent of Net Asset Value 37.70%
C000035460 | Transamerica BondFR_893961334  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
C000035460 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 11.40%
C000035460 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000035460 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000035460 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000035460 | Transamerica Inflation OpportunitiesFR_89354D841  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000035460 | Transamerica Long CreditFR_89356M617  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000035460 | Transamerica Emerging Markets DebtFR_893509141  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000035460 | Transamerica BondFR_89354D429  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000035460 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 58.80%
C000035460 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 26.30%
C000035460 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 10.10%
C000035460 | IndustryInternational Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000035460 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000035460 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000035460 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [4]
C000035460 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000236143 | Transamerica Core BondFR_89354D106  
Holdings [Line Items]  
Percent of Net Asset Value 37.70%
C000236143 | Transamerica BondFR_893961334  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
C000236143 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 11.40%
C000236143 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000236143 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000236143 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000236143 | Transamerica Inflation OpportunitiesFR_89354D841  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000236143 | Transamerica Long CreditFR_89356M617  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000236143 | Transamerica Emerging Markets DebtFR_893509141  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000236143 | Transamerica BondFR_89354D429  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000236143 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 58.80%
C000236143 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 26.30%
C000236143 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 10.10%
C000236143 | IndustryInternational Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000236143 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000236143 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000236143 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [5]
C000236143 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000021271 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 30.90%
C000021271 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 27.00%
C000021271 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000021271 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 10.80%
C000021271 | Transamerica Sustainable Equity IncomeFR_89355J532  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000021271 | Transamerica International FocusFR_893961649  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000021271 | Transamerica Capital GrowthFR_893509133  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000021271 | Transamerica Energy InfrastructureFR_89355J482  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000021271 | Transamerica Mid Cap GrowthFR_89355J359  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000021271 | Transamerica Small Cap ValueFR_89355J763  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000021271 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 68.80%
C000021271 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 27.20%
C000021271 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000021271 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000021271 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [6]
C000021271 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000021273 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 30.90%
C000021273 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 27.00%
C000021273 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000021273 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 10.80%
C000021273 | Transamerica Sustainable Equity IncomeFR_89355J532  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000021273 | Transamerica International FocusFR_893961649  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000021273 | Transamerica Capital GrowthFR_893509133  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000021273 | Transamerica Energy InfrastructureFR_89355J482  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000021273 | Transamerica Mid Cap GrowthFR_89355J359  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000021273 | Transamerica Small Cap ValueFR_89355J763  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000021273 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 68.80%
C000021273 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 27.20%
C000021273 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000021273 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000021273 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [7]
C000021273 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000081835 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 30.90%
C000081835 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 27.00%
C000081835 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000081835 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 10.80%
C000081835 | Transamerica Sustainable Equity IncomeFR_89355J532  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000081835 | Transamerica International FocusFR_893961649  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000081835 | Transamerica Capital GrowthFR_893509133  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000081835 | Transamerica Energy InfrastructureFR_89355J482  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000081835 | Transamerica Mid Cap GrowthFR_89355J359  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000081835 | Transamerica Small Cap ValueFR_89355J763  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000081835 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 68.80%
C000081835 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 27.20%
C000081835 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000081835 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000081835 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [8]
C000081835 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000035461 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 30.90%
C000035461 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 27.00%
C000035461 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000035461 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 10.80%
C000035461 | Transamerica Sustainable Equity IncomeFR_89355J532  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000035461 | Transamerica International FocusFR_893961649  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000035461 | Transamerica Capital GrowthFR_893509133  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000035461 | Transamerica Energy InfrastructureFR_89355J482  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000035461 | Transamerica Mid Cap GrowthFR_89355J359  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000035461 | Transamerica Small Cap ValueFR_89355J763  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000035461 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 68.80%
C000035461 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 27.20%
C000035461 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000035461 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000035461 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [9]
C000035461 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000236144 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 30.90%
C000236144 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 27.00%
C000236144 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000236144 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 10.80%
C000236144 | Transamerica Sustainable Equity IncomeFR_89355J532  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000236144 | Transamerica International FocusFR_893961649  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000236144 | Transamerica Capital GrowthFR_893509133  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000236144 | Transamerica Energy InfrastructureFR_89355J482  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000236144 | Transamerica Mid Cap GrowthFR_89355J359  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000236144 | Transamerica Small Cap ValueFR_89355J763  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000236144 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 68.80%
C000236144 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 27.20%
C000236144 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000236144 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000236144 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [10]
C000236144 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000021274 | Transamerica Core BondFR_89354D106  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000021274 | Transamerica BondFR_893961334  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000021274 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 22.50%
C000021274 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 20.50%
C000021274 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000021274 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000021274 | Transamerica Inflation OpportunitiesFR_89354D841  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000021274 | Transamerica Emerging Markets DebtFR_893509141  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000021274 | Transamerica Sustainable Equity IncomeFR_89355J532  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000021274 | Transamerica Emerging Markets EquityFR_89360T210  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000021274 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 22.90%
C000021274 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 51.40%
C000021274 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 20.10%
C000021274 | IndustryInternational Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000021274 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000021274 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000021274 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [11]
C000021274 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [11]
C000021276 | Transamerica Core BondFR_89354D106  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000021276 | Transamerica BondFR_893961334  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000021276 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 22.50%
C000021276 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 20.50%
C000021276 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000021276 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000021276 | Transamerica Inflation OpportunitiesFR_89354D841  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000021276 | Transamerica Emerging Markets DebtFR_893509141  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000021276 | Transamerica Sustainable Equity IncomeFR_89355J532  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000021276 | Transamerica Emerging Markets EquityFR_89360T210  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000021276 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 22.90%
C000021276 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 51.40%
C000021276 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 20.10%
C000021276 | IndustryInternational Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000021276 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000021276 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000021276 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [12]
C000021276 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [12]
C000081836 | Transamerica Core BondFR_89354D106  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000081836 | Transamerica BondFR_893961334  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000081836 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 22.50%
C000081836 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 20.50%
C000081836 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000081836 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000081836 | Transamerica Inflation OpportunitiesFR_89354D841  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000081836 | Transamerica Emerging Markets DebtFR_893509141  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000081836 | Transamerica Sustainable Equity IncomeFR_89355J532  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000081836 | Transamerica Emerging Markets EquityFR_89360T210  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000081836 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 22.90%
C000081836 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 51.40%
C000081836 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 20.10%
C000081836 | IndustryInternational Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000081836 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000081836 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000081836 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [13]
C000081836 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [13]
C000035462 | Transamerica Core BondFR_89354D106  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000035462 | Transamerica BondFR_893961334  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000035462 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 22.50%
C000035462 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 20.50%
C000035462 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000035462 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000035462 | Transamerica Inflation OpportunitiesFR_89354D841  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000035462 | Transamerica Emerging Markets DebtFR_893509141  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000035462 | Transamerica Sustainable Equity IncomeFR_89355J532  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000035462 | Transamerica Emerging Markets EquityFR_89360T210  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000035462 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 22.90%
C000035462 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 51.40%
C000035462 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 20.10%
C000035462 | IndustryInternational Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000035462 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000035462 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000035462 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [14]
C000035462 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [14]
C000236145 | Transamerica Core BondFR_89354D106  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000236145 | Transamerica BondFR_893961334  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000236145 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 22.50%
C000236145 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 20.50%
C000236145 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000236145 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000236145 | Transamerica Inflation OpportunitiesFR_89354D841  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000236145 | Transamerica Emerging Markets DebtFR_893509141  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000236145 | Transamerica Sustainable Equity IncomeFR_89355J532  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000236145 | Transamerica Emerging Markets EquityFR_89360T210  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000236145 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 22.90%
C000236145 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 51.40%
C000236145 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 20.10%
C000236145 | IndustryInternational Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000236145 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000236145 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000236145 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [15]
C000236145 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [15]
C000021277 | Transamerica Core BondFR_89354D106  
Holdings [Line Items]  
Percent of Net Asset Value 26.50%
C000021277 | Transamerica BondFR_893961334  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000021277 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 16.20%
C000021277 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 14.60%
C000021277 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000021277 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000021277 | Transamerica Inflation OpportunitiesFR_89354D841  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000021277 | Transamerica Long CreditFR_89356M617  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000021277 | Transamerica Emerging Markets DebtFR_893509141  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000021277 | Transamerica Sustainable Equity IncomeFR_89355J532  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000021277 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 43.30%
C000021277 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 37.20%
C000021277 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
C000021277 | IndustryInternational Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000021277 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000021277 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000021277 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [16]
C000021277 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [16]
C000021279 | Transamerica Core BondFR_89354D106  
Holdings [Line Items]  
Percent of Net Asset Value 26.50%
C000021279 | Transamerica BondFR_893961334  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000021279 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 16.20%
C000021279 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 14.60%
C000021279 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000021279 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000021279 | Transamerica Inflation OpportunitiesFR_89354D841  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000021279 | Transamerica Long CreditFR_89356M617  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000021279 | Transamerica Emerging Markets DebtFR_893509141  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000021279 | Transamerica Sustainable Equity IncomeFR_89355J532  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000021279 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 43.30%
C000021279 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 37.20%
C000021279 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
C000021279 | IndustryInternational Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000021279 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000021279 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000021279 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [17]
C000021279 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [17]
C000081837 | Transamerica Core BondFR_89354D106  
Holdings [Line Items]  
Percent of Net Asset Value 26.50%
C000081837 | Transamerica BondFR_893961334  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000081837 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 16.20%
C000081837 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 14.60%
C000081837 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000081837 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000081837 | Transamerica Inflation OpportunitiesFR_89354D841  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000081837 | Transamerica Long CreditFR_89356M617  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000081837 | Transamerica Emerging Markets DebtFR_893509141  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000081837 | Transamerica Sustainable Equity IncomeFR_89355J532  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000081837 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 43.30%
C000081837 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 37.20%
C000081837 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
C000081837 | IndustryInternational Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000081837 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000081837 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000081837 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [18]
C000081837 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [18]
C000035463 | Transamerica Core BondFR_89354D106  
Holdings [Line Items]  
Percent of Net Asset Value 26.50%
C000035463 | Transamerica BondFR_893961334  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000035463 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 16.20%
C000035463 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 14.60%
C000035463 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000035463 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000035463 | Transamerica Inflation OpportunitiesFR_89354D841  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000035463 | Transamerica Long CreditFR_89356M617  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000035463 | Transamerica Emerging Markets DebtFR_893509141  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000035463 | Transamerica Sustainable Equity IncomeFR_89355J532  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000035463 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 43.30%
C000035463 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 37.20%
C000035463 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
C000035463 | IndustryInternational Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000035463 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000035463 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000035463 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [19]
C000035463 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [19]
C000236146 | Transamerica Core BondFR_89354D106  
Holdings [Line Items]  
Percent of Net Asset Value 26.50%
C000236146 | Transamerica BondFR_893961334  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000236146 | Transamerica US GrowthFR_893962373  
Holdings [Line Items]  
Percent of Net Asset Value 16.20%
C000236146 | Transamerica Large Cap ValueFR_893509257  
Holdings [Line Items]  
Percent of Net Asset Value 14.60%
C000236146 | Transamerica International EquityFR_893509216  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000236146 | Transamerica International StockFR_89360T293  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000236146 | Transamerica Inflation OpportunitiesFR_89354D841  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000236146 | Transamerica Long CreditFR_89356M617  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000236146 | Transamerica Emerging Markets DebtFR_893509141  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000236146 | Transamerica Sustainable Equity IncomeFR_89355J532  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000236146 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 43.30%
C000236146 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 37.20%
C000236146 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
C000236146 | IndustryInternational Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000236146 | IndustryRepurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000236146 | IndustryU.S. Mixed Allocation Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000236146 | IndustryInternational Alternative Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [20]
C000236146 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [20]
C000171782 | Transamerica Core BondFR_89360T624  
Holdings [Line Items]  
Percent of Net Asset Value 22.10%
C000171782 | Transamerica Large Value OpportunitiesFR_89360T749  
Holdings [Line Items]  
Percent of Net Asset Value 14.40%
C000171782 | Transamerica Large GrowthFR_89360T772  
Holdings [Line Items]  
Percent of Net Asset Value 13.30%
C000171782 | Transamerica International EquityFR_89360T582  
Holdings [Line Items]  
Percent of Net Asset Value 12.90%
C000171782 | Transamerica Inflation OpportunitiesFR_89356M625  
Holdings [Line Items]  
Percent of Net Asset Value 10.90%
C000171782 | Transamerica Short-Term BondFR_89356M658  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
C000171782 | Transamerica High Yield BondFR_89360T657  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
C000171782 | Transamerica Small Cap ValueFR_89360T426  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000171782 | Transamerica Mid Cap GrowthFR_89360T558  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000171782 | Transamerica Mid Cap Value OpportunitiesFR_89360T525  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000171782 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 46.60%
C000171782 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 40.30%
C000171782 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 12.90%
C000171782 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [21]
C000171782 | IndustryMoney Market Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000171783 | Transamerica Core BondFR_89360T624  
Holdings [Line Items]  
Percent of Net Asset Value 22.10%
C000171783 | Transamerica Large Value OpportunitiesFR_89360T749  
Holdings [Line Items]  
Percent of Net Asset Value 14.40%
C000171783 | Transamerica Large GrowthFR_89360T772  
Holdings [Line Items]  
Percent of Net Asset Value 13.30%
C000171783 | Transamerica International EquityFR_89360T582  
Holdings [Line Items]  
Percent of Net Asset Value 12.90%
C000171783 | Transamerica Inflation OpportunitiesFR_89356M625  
Holdings [Line Items]  
Percent of Net Asset Value 10.90%
C000171783 | Transamerica Short-Term BondFR_89356M658  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
C000171783 | Transamerica High Yield BondFR_89360T657  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
C000171783 | Transamerica Small Cap ValueFR_89360T426  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000171783 | Transamerica Mid Cap GrowthFR_89360T558  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000171783 | Transamerica Mid Cap Value OpportunitiesFR_89360T525  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000171783 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 46.60%
C000171783 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 40.30%
C000171783 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 12.90%
C000171783 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [22]
C000171783 | IndustryMoney Market Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000171786 | Transamerica Core BondFR_89360T624  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000171786 | Transamerica Large Value OpportunitiesFR_89360T749  
Holdings [Line Items]  
Percent of Net Asset Value 22.10%
C000171786 | Transamerica Large GrowthFR_89360T772  
Holdings [Line Items]  
Percent of Net Asset Value 20.70%
C000171786 | Transamerica International EquityFR_89360T582  
Holdings [Line Items]  
Percent of Net Asset Value 24.80%
C000171786 | Transamerica Inflation OpportunitiesFR_89356M625  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000171786 | Transamerica High Yield BondFR_89360T657  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000171786 | Transamerica Small Cap ValueFR_89360T426  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000171786 | Transamerica Mid Cap GrowthFR_89360T558  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000171786 | Transamerica Mid Cap Value OpportunitiesFR_89360T525  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000171786 | Transamerica Small Cap GrowthFR_89360T459  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000171786 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000171786 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 65.90%
C000171786 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 24.80%
C000171786 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [23]
C000171786 | IndustryMoney Market Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000171787 | Transamerica Core BondFR_89360T624  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000171787 | Transamerica Large Value OpportunitiesFR_89360T749  
Holdings [Line Items]  
Percent of Net Asset Value 22.10%
C000171787 | Transamerica Large GrowthFR_89360T772  
Holdings [Line Items]  
Percent of Net Asset Value 20.70%
C000171787 | Transamerica International EquityFR_89360T582  
Holdings [Line Items]  
Percent of Net Asset Value 24.80%
C000171787 | Transamerica Inflation OpportunitiesFR_89356M625  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000171787 | Transamerica High Yield BondFR_89360T657  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000171787 | Transamerica Small Cap ValueFR_89360T426  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000171787 | Transamerica Mid Cap GrowthFR_89360T558  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000171787 | Transamerica Mid Cap Value OpportunitiesFR_89360T525  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000171787 | Transamerica Small Cap GrowthFR_89360T459  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000171787 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000171787 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 65.90%
C000171787 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 24.80%
C000171787 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [24]
C000171787 | IndustryMoney Market Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000171788 | Transamerica Core BondFR_89360T624  
Holdings [Line Items]  
Percent of Net Asset Value 44.00%
C000171788 | Transamerica Large Value OpportunitiesFR_89360T749  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000171788 | Transamerica Large GrowthFR_89360T772  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000171788 | Transamerica International EquityFR_89360T582  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000171788 | Transamerica Inflation OpportunitiesFR_89356M625  
Holdings [Line Items]  
Percent of Net Asset Value 16.90%
C000171788 | Transamerica Short-Term BondFR_89356M658  
Holdings [Line Items]  
Percent of Net Asset Value 17.50%
C000171788 | Transamerica High Yield BondFR_89360T657  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000171788 | Transamerica Small Cap ValueFR_89360T426  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000171788 | Transamerica Small Cap GrowthFR_89360T459  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000171788 | Transamerica Government Money MarketFR_89360T681  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000171788 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 89.00%
C000171788 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000171788 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000171788 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [25]
C000171788 | IndustryMoney Market Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000171789 | Transamerica Core BondFR_89360T624  
Holdings [Line Items]  
Percent of Net Asset Value 44.00%
C000171789 | Transamerica Large Value OpportunitiesFR_89360T749  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000171789 | Transamerica Large GrowthFR_89360T772  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000171789 | Transamerica International EquityFR_89360T582  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000171789 | Transamerica Inflation OpportunitiesFR_89356M625  
Holdings [Line Items]  
Percent of Net Asset Value 16.90%
C000171789 | Transamerica Short-Term BondFR_89356M658  
Holdings [Line Items]  
Percent of Net Asset Value 17.50%
C000171789 | Transamerica High Yield BondFR_89360T657  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000171789 | Transamerica Small Cap ValueFR_89360T426  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000171789 | Transamerica Small Cap GrowthFR_89360T459  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000171789 | Transamerica Government Money MarketFR_89360T681  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000171789 | IndustryU.S. Fixed Income Funds  
Holdings [Line Items]  
Percent of Net Asset Value 89.00%
C000171789 | IndustryU.S. Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000171789 | IndustryInternational Equity Funds  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000171789 | Industry Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [26]
C000171789 | IndustryMoney Market Funds  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
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