v3.26.1
Shareholder Report, Average Annual Return (Details)
 12 Months Ended 60 Months Ended 68 Months Ended
May 31, 2026
May 31, 2026
May 31, 2026
Without Sales Load [Member] | C000220710      
Average Annual Return [Line Items]      
Average Annual Return, Percent 26.55% 9.15% 12.43%
Without Sales Load [Member] | C000220708      
Average Annual Return [Line Items]      
Average Annual Return, Percent 26.19% 8.87% 12.14%
Without Sales Load [Member] | C000220709      
Average Annual Return [Line Items]      
Average Annual Return, Percent 26.74% 9.32% 12.62%
Russell 3000 Index      
Average Annual Return [Line Items]      
Average Annual Return, Percent 29.45% 12.92% 15.50%
Russell 3000 Index      
Average Annual Return [Line Items]      
Average Annual Return, Percent 29.45% 12.92% 15.50%
Russell 3000 Index      
Average Annual Return [Line Items]      
Average Annual Return, Percent 29.45% 12.92% 15.50%
S&P Target Date 2065+ Index      
Average Annual Return [Line Items]      
Average Annual Return, Percent 28.11% 10.50% 13.28%
S&P Target Date 2065+ Index      
Average Annual Return [Line Items]      
Average Annual Return, Percent 28.11% 10.50% 13.28%
S&P Target Date 2065+ Index      
Average Annual Return [Line Items]      
Average Annual Return, Percent 28.11% 10.50% 13.28%