Shareholder Report, Line Graph (Details) - USD ($) |
May 31, 2025 |
Feb. 28, 2025 |
Nov. 30, 2024 |
Aug. 31, 2024 |
May 31, 2024 |
Feb. 29, 2024 |
Nov. 30, 2023 |
Nov. 13, 2023 |
Aug. 31, 2023 |
May 31, 2023 |
Feb. 28, 2023 |
Nov. 30, 2022 |
Aug. 31, 2022 |
May 31, 2022 |
Feb. 28, 2022 |
Nov. 30, 2021 |
Aug. 31, 2021 |
May 31, 2021 |
Feb. 28, 2021 |
Nov. 30, 2020 |
Aug. 31, 2020 |
May 31, 2020 |
Feb. 29, 2020 |
Nov. 30, 2019 |
Aug. 31, 2019 |
May 31, 2019 |
Feb. 28, 2019 |
Nov. 30, 2018 |
Aug. 31, 2018 |
May 31, 2018 |
Feb. 28, 2018 |
Nov. 30, 2017 |
Aug. 31, 2017 |
May 31, 2017 |
Feb. 28, 2017 |
Nov. 30, 2016 |
Aug. 31, 2016 |
May 31, 2016 |
Feb. 29, 2016 |
Nov. 30, 2015 |
Aug. 31, 2015 |
May 31, 2015 |
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C000005496 | ||||||||||||||||||||||||||||||||||||||||||
Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||
Account Value | $ 22,584 | $ 22,343 | $ 22,482 | $ 21,782 | $ 20,674 | $ 19,932 | $ 18,225 | $ 18,062 | $ 17,025 | $ 16,632 | $ 16,706 | $ 16,134 | $ 17,014 | $ 18,255 | $ 19,188 | $ 19,600 | $ 18,831 | $ 17,532 | $ 16,257 | $ 15,206 | $ 13,417 | $ 13,412 | $ 13,964 | $ 13,264 | $ 12,629 | $ 12,729 | $ 12,282 | $ 12,944 | $ 12,588 | $ 12,588 | $ 12,353 | $ 11,734 | $ 11,326 | $ 10,760 | $ 10,054 | $ 10,045 | $ 9,647 | $ 8,889 | $ 9,605 | $ 9,344 | $ 10,000 | |
C000005497 | ||||||||||||||||||||||||||||||||||||||||||
Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||
Account Value | 22,025 | 21,801 | 21,951 | 21,284 | 20,213 | 19,499 | 17,845 | 17,695 | 16,686 | 16,315 | 16,392 | 15,840 | 16,715 | 17,950 | 18,881 | 19,297 | 18,553 | 17,281 | 16,032 | 15,010 | 13,247 | 13,252 | 13,807 | 13,123 | 12,503 | 12,608 | 12,174 | 12,837 | 12,494 | 12,503 | 12,277 | 11,668 | 11,267 | 10,708 | 10,016 | 10,011 | 9,619 | 8,869 | 9,594 | 9,335 | 10,000 | |
C000005498 | ||||||||||||||||||||||||||||||||||||||||||
Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||
Account Value | 21,484 | 21,277 | 21,441 | 20,801 | 19,767 | 19,074 | 17,471 | 17,336 | 16,354 | 15,999 | 16,091 | 15,561 | 16,424 | 17,651 | 18,575 | 18,995 | 18,277 | 17,033 | 15,812 | 14,811 | 13,087 | 13,098 | 13,655 | 12,986 | 12,378 | 12,493 | 12,068 | 12,735 | 12,397 | 12,415 | 12,202 | 11,602 | 11,213 | 10,666 | 9,976 | 9,981 | 9,595 | 8,854 | 9,583 | 9,331 | 10,000 | |
C000244823 | ||||||||||||||||||||||||||||||||||||||||||
Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||
Account Value | 645,405 | 638,322 | 642,048 | 621,910 | 589,926 | 568,406 | 519,245 | $ 500,000 | ||||||||||||||||||||||||||||||||||
Russell 3000 Index | ||||||||||||||||||||||||||||||||||||||||||
Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||
Account Value | 31,648 | 31,819 | 32,439 | 30,020 | 27,978 | 27,072 | 24,121 | 23,798 | 21,929 | 21,051 | 21,420 | 20,738 | 21,492 | 22,900 | 24,014 | 23,914 | 22,314 | 20,393 | 19,008 | 17,975 | 15,505 | 15,069 | 15,970 | 14,801 | 13,911 | 14,096 | 13,828 | 14,610 | 13,572 | 13,419 | 13,104 | 12,150 | 11,795 | 11,546 | 10,717 | 10,468 | 10,022 | 9,142 | 9,895 | 9,394 | 10,000 | |
Russell 3000 Index | ||||||||||||||||||||||||||||||||||||||||||
Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||
Account Value | 31,648 | 31,819 | 32,439 | 30,020 | 27,978 | 27,072 | 24,121 | 23,798 | 21,929 | 21,051 | 21,420 | 20,738 | 21,492 | 22,900 | 24,014 | 23,914 | 22,314 | 20,393 | 19,008 | 17,975 | 15,505 | 15,069 | 15,970 | 14,801 | 13,911 | 14,096 | 13,828 | 14,610 | 13,572 | 13,419 | 13,104 | 12,150 | 11,795 | 11,546 | 10,717 | 10,468 | 10,022 | 9,142 | 9,895 | 9,394 | 10,000 | |
Russell 3000 Index | ||||||||||||||||||||||||||||||||||||||||||
Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||
Account Value | 31,648 | 31,819 | 32,439 | 30,020 | 27,978 | 27,072 | 24,121 | 23,798 | 21,929 | 21,051 | 21,420 | 20,738 | 21,492 | 22,900 | 24,014 | 23,914 | 22,314 | 20,393 | 19,008 | 17,975 | 15,505 | 15,069 | 15,970 | 14,801 | 13,911 | 14,096 | 13,828 | 14,610 | 13,572 | 13,419 | 13,104 | 12,150 | 11,795 | 11,546 | 10,717 | 10,468 | 10,022 | 9,142 | 9,895 | 9,394 | 10,000 | |
Russell 3000 Index | ||||||||||||||||||||||||||||||||||||||||||
Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||
Account Value | 682,760 | 686,440 | 699,825 | 647,631 | 603,581 | 584,038 | 520,373 | 500,000 | ||||||||||||||||||||||||||||||||||
S&P Target Date 2040 Index | ||||||||||||||||||||||||||||||||||||||||||
Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||
Account Value | 21,980 | 21,538 | 21,554 | 20,992 | 19,825 | 19,226 | 17,739 | 17,575 | 16,677 | 16,377 | 16,270 | 15,773 | 16,575 | 17,484 | 17,985 | 18,264 | 17,645 | 16,383 | 15,385 | 14,506 | 13,003 | 13,032 | 13,746 | 12,936 | 12,408 | 12,567 | 12,241 | 12,913 | 12,477 | 12,397 | 12,227 | 11,531 | 11,223 | 10,843 | 10,208 | 10,190 | 9,821 | 9,085 | 9,720 | 9,398 | 10,000 | |
S&P Target Date 2040 Index | ||||||||||||||||||||||||||||||||||||||||||
Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||
Account Value | 21,980 | 21,538 | 21,554 | 20,992 | 19,825 | 19,226 | 17,739 | 17,575 | 16,677 | 16,377 | 16,270 | 15,773 | 16,575 | 17,484 | 17,985 | 18,264 | 17,645 | 16,383 | 15,385 | 14,506 | 13,003 | 13,032 | 13,746 | 12,936 | 12,408 | 12,567 | 12,241 | 12,913 | 12,477 | 12,397 | 12,227 | 11,531 | 11,223 | 10,843 | 10,208 | 10,190 | 9,821 | 9,085 | 9,720 | 9,398 | 10,000 | |
S&P Target Date 2040 Index | ||||||||||||||||||||||||||||||||||||||||||
Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||
Account Value | 21,980 | 21,538 | 21,554 | 20,992 | 19,825 | 19,226 | 17,739 | $ 17,575 | $ 16,677 | $ 16,377 | $ 16,270 | $ 15,773 | $ 16,575 | $ 17,484 | $ 17,985 | $ 18,264 | $ 17,645 | $ 16,383 | $ 15,385 | $ 14,506 | $ 13,003 | $ 13,032 | $ 13,746 | $ 12,936 | $ 12,408 | $ 12,567 | $ 12,241 | $ 12,913 | $ 12,477 | $ 12,397 | $ 12,227 | $ 11,531 | $ 11,223 | $ 10,843 | $ 10,208 | $ 10,190 | $ 9,821 | $ 9,085 | $ 9,720 | $ 9,398 | $ 10,000 | |
S&P Target Date 2040 Index | ||||||||||||||||||||||||||||||||||||||||||
Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||
Account Value | $ 643,669 | $ 630,728 | $ 631,205 | $ 614,736 | $ 580,565 | $ 563,025 | $ 519,476 | $ 500,000 |