v3.26.3
Shareholder Report, Line Graph (Details) - USD ($)
 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended 15 Months Ended 18 Months Ended 21 Months Ended 24 Months Ended 27 Months Ended 30 Months Ended 33 Months Ended 36 Months Ended 39 Months Ended 42 Months Ended 45 Months Ended 48 Months Ended 51 Months Ended 54 Months Ended 57 Months Ended 60 Months Ended 63 Months Ended 66 Months Ended 69 Months Ended 72 Months Ended 75 Months Ended 78 Months Ended 81 Months Ended 84 Months Ended 87 Months Ended 90 Months Ended 93 Months Ended 96 Months Ended 99 Months Ended 102 Months Ended 105 Months Ended 108 Months Ended 111 Months Ended 114 Months Ended 117 Months Ended 120 Months Ended
Aug. 31, 2016
Nov. 30, 2016
Feb. 28, 2017
May 31, 2017
Aug. 31, 2026
Aug. 31, 2017
Nov. 30, 2017
Feb. 28, 2018
May 31, 2018
Aug. 31, 2018
Nov. 30, 2018
Feb. 28, 2019
May 31, 2019
Aug. 31, 2019
Nov. 30, 2019
Feb. 29, 2020
May 31, 2020
Aug. 31, 2020
Nov. 30, 2020
Feb. 28, 2021
May 31, 2021
Aug. 31, 2021
Nov. 30, 2021
Feb. 28, 2022
May 31, 2022
Aug. 31, 2022
Nov. 30, 2022
Feb. 28, 2023
May 31, 2023
Aug. 31, 2023
Nov. 30, 2023
Feb. 29, 2024
May 31, 2024
Aug. 31, 2024
Nov. 30, 2024
Feb. 28, 2025
May 31, 2025
Aug. 31, 2025
Nov. 30, 2025
Feb. 28, 2026
May 31, 2026
Aug. 31, 2026
C000085513                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Investor Shares                                                                          
Accumulated Value $ 10,000 $ 10,634 $ 11,031 $ 11,051   $ 11,164 $ 12,198 $ 12,014 $ 12,862 $ 13,632 $ 11,997 $ 12,274 $ 11,725 $ 12,255 $ 13,101 $ 11,739 $ 10,235 $ 11,260 $ 12,942 $ 15,835 $ 17,565 $ 17,329 $ 17,075 $ 17,489 $ 16,666 $ 15,588 $ 16,498 $ 16,722 $ 15,042 $ 16,747 $ 16,212 $ 18,231 $ 18,979 $ 20,237 $ 22,056 $ 20,067 $ 18,933 $ 21,614 $ 21,442 $ 23,967 $ 24,770 $ 26,570
C000092010                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         ETF Shares Net Asset Value                                                                          
Accumulated Value 10,000 10,197 11,004 11,266   11,602 12,487 12,826 12,896 13,886 13,212 13,454 13,333 14,225 15,335 14,500 14,993 17,410 18,294 19,456 21,375 23,005 23,156 22,109 20,780 20,011 20,672 20,279 21,275 23,081 23,473 26,318 27,226 29,207 31,524 31,062 30,943 33,926 35,940 36,237 39,843 40,613
C000092009                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Institutional Shares                                                                          
Accumulated Value 5,000,000 5,098,672 5,502,771 5,634,183   5,803,117 6,246,121 6,416,603 6,451,599 6,947,504 6,611,108 6,733,125 6,672,268 7,117,895 7,673,333 7,256,376 7,505,966 8,716,085 9,158,843 9,741,130 10,702,553 11,519,385 11,595,130 11,070,498 10,405,863 10,020,787 10,352,788 10,155,431 10,654,627 11,558,654 11,754,727 13,180,169 13,635,030 14,627,805 15,788,493 15,557,340 15,498,185 16,992,653 18,002,334 18,151,098 19,957,851 20,344,282
C000092012                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         ETF Shares Net Asset Value                                                                          
Accumulated Value 10,000 10,382 11,100 10,953   11,145 11,910 11,948 11,845 12,523 12,250 12,318 12,011 12,599 13,638 12,382 11,806 12,693 13,858 15,116 17,030 17,303 16,927 17,366 17,170 16,209 17,316 16,864 16,379 17,595 17,549 19,219 19,928 21,301 22,720 22,232 21,688 23,276 24,352 26,299 27,863 30,173
C000092011                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Institutional Shares                                                                          
Accumulated Value 5,000,000 5,191,636 5,550,790 5,477,604   5,574,708 5,957,723 5,977,403 5,925,376 6,265,499 6,128,718 6,164,152 6,009,859 6,303,627 6,823,619 6,195,537 5,910,170 6,354,967 6,939,119 7,569,505 8,527,787 8,664,830 8,477,665 8,696,957 8,600,376 8,118,749 8,675,140 8,446,892 8,204,935 8,812,728 8,789,259 9,627,454 9,982,381 10,670,932 11,381,905 11,137,613 10,865,585 11,660,931 12,201,182 13,175,687 13,960,516 15,118,561
C000092014                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         ETF Shares Net Asset Value                                                                          
Accumulated Value 10,000 10,011 10,909 11,577   12,066 13,080 13,741 13,995 15,335 14,188 14,636 14,736 15,979 17,157 16,835 18,588 23,039 23,378 24,262 25,987 29,583 30,529 27,288 24,346 23,931 23,907 23,632 26,653 29,164 30,157 34,473 35,595 38,119 41,594 41,246 41,832 46,689 50,023 47,311 53,790 51,713
C000092013                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Institutional Shares                                                                          
Accumulated Value 5,000,000 5,006,262 5,455,698 5,790,154   6,035,864 6,543,770 6,874,793 7,002,045 7,673,892 7,100,544 7,325,272 7,375,705 7,996,929 8,587,048 8,425,707 9,305,246 11,534,513 11,703,934 12,146,978 13,011,928 14,812,249 15,286,946 13,662,987 12,190,935 11,984,449 11,972,624 11,833,438 13,346,426 14,604,788 15,102,813 17,264,759 17,826,944 19,091,262 20,832,330 20,658,583 20,953,299 23,385,458 25,056,742 23,699,046 26,944,828 25,905,632
C000092016                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         ETF Shares Net Asset Value                                                                          
Accumulated Value 10,000 10,705 11,262 11,172   11,494 12,673 12,450 13,495 14,425 12,749 13,149 12,280 12,573 13,718 12,514 11,866 13,342 15,600 18,915 19,544 19,633 19,037 17,772 16,235 16,123 16,562 16,718 15,491 16,889 16,153 18,406 18,614 20,013 22,042 19,641 18,839 21,656 22,959 24,242 26,973 27,403
C000092015                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Institutional Shares                                                                          
Accumulated Value 5,000,000 5,353,651 5,632,937 5,588,609   5,751,449 6,342,538 6,231,995 6,755,964 7,222,786 6,384,382 6,585,347 6,150,043 6,296,369 6,869,290 6,267,265 5,943,243 6,683,398 7,814,450 9,476,414 9,791,233 9,837,078 9,538,453 8,904,829 8,134,736 8,078,674 8,300,366 8,377,510 7,762,934 8,463,537 8,095,027 9,225,145 9,329,721 10,031,650 11,049,113 9,846,028 9,443,772 10,856,546 11,509,171 12,152,062 13,521,942 13,737,600
C000092017                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         ETF Shares Net Asset Value                                                                          
Accumulated Value 10,000 11,041 11,578 11,167   11,342 12,508 11,916 12,984 13,606 12,271 12,432 11,505 11,575 12,755 11,275 9,819 10,874 12,810 15,917 17,612 17,327 17,021 16,950 16,240 15,546 16,195 16,202 14,377 15,887 15,436 17,106 17,496 18,932 20,442 18,389 17,292 20,032 21,062 22,980 24,960 26,031
C000092018                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Institutional Shares                                                                          
Accumulated Value 5,000,000 5,521,984 5,792,185 5,588,158   5,677,525 6,263,824 5,968,270 6,504,949 6,818,586 6,150,723 6,233,729 5,769,479 5,804,032 6,396,121 5,655,267 4,926,709 5,457,712 6,430,064 7,991,755 8,844,256 8,702,805 8,550,338 8,515,313 8,160,910 7,812,450 8,141,650 8,145,035 7,228,753 7,988,722 7,762,592 8,605,201 8,802,850 9,527,130 10,289,471 9,257,408 8,705,035 10,085,622 10,605,282 11,571,380 12,568,640 13,108,108
C000092020                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         ETF Shares Net Asset Value                                                                          
Accumulated Value 10,000 10,368 10,940 11,173   11,639 12,820 12,953 13,967 15,211 13,180 13,821 13,011 13,543 14,631 13,734 13,973 15,889 18,436 21,830 20,993 21,557 20,638 18,027 15,585 16,107 16,312 16,607 16,015 17,213 16,188 18,972 18,966 20,258 22,740 20,080 19,623 22,387 23,913 24,487 27,857 27,615
C000092019                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Institutional Shares                                                                          
Accumulated Value 5,000,000 5,185,697 5,473,239 5,591,338   5,826,316 6,420,172 6,488,220 6,998,442 7,623,670 6,607,997 6,930,951 6,525,479 6,792,227 7,339,232 6,890,349 7,012,699 7,975,737 9,255,796 10,961,884 10,543,267 10,828,776 10,368,740 9,057,632 7,832,237 8,095,573 8,200,879 8,349,990 8,053,582 8,657,370 8,142,987 9,545,319 9,544,285 10,196,450 11,447,335 10,109,666 9,880,634 11,273,316 12,042,249 12,332,387 14,030,126 13,908,239
C000092022                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         ETF Shares Net Asset Value                                                                          
Accumulated Value 10,000 10,234 11,023 11,257   11,592 12,495 12,791 12,935 13,919 13,169 13,423 13,245 14,093 15,202 14,342 14,751 17,096 18,076 19,387 21,206 22,721 22,810 21,745 20,403 19,686 20,329 19,976 20,804 22,576 22,885 25,678 26,531 28,460 30,746 30,151 29,983 32,940 34,897 35,257 38,788 39,545
C000092021                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Institutional Shares                                                                          
Accumulated Value 5,000,000 5,118,239 5,513,397 5,631,513   5,799,864 6,253,458 6,402,562 6,475,180 6,968,747 6,594,655 6,722,804 6,633,863 7,057,172 7,613,044 7,182,964 7,389,953 8,566,202 9,057,564 9,715,315 10,627,909 11,387,775 11,433,030 10,899,633 10,227,741 9,868,217 10,192,027 10,014,533 10,430,644 11,318,692 11,473,306 12,874,820 13,303,261 14,271,279 15,418,427 15,120,176 15,036,069 16,519,081 17,500,300 17,681,302 19,453,265 19,832,852
NACC2 Index: Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                          
Accumulated Value 10,000 10,233 11,028 11,265   11,605 12,514 12,818 12,965 13,956 13,202 13,458 13,279 14,127 15,231 14,369 14,780 17,123 18,115 19,470 21,279 22,828 22,913 21,794 20,429 19,693 20,334 19,999 20,821 22,598 22,901 25,719 26,584 28,511 30,815 30,221 30,045 33,038 34,985 35,334 39,010 39,694
NACC2 Index: Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                          
Accumulated Value 10,000 10,233 11,028 11,265   11,605 12,514 12,818 12,965 13,956 13,202 13,458 13,279 14,127 15,231 14,369 14,780 17,123 18,115 19,470 21,279 22,828 22,913 21,794 20,429 19,693 20,334 19,999 20,821 22,598 22,901 25,719 26,584 28,511 30,815 30,221 30,045 33,038 34,985 35,334 39,010 39,694
NACC2 Index: Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                          
Accumulated Value 5,000,000 5,116,612 5,513,817 5,632,496   5,802,313 6,256,892 6,408,855 6,482,327 6,977,843 6,600,859 6,728,954 6,639,384 7,063,661 7,615,631 7,184,422 7,390,068 8,561,505 9,057,250 9,735,081 10,639,299 11,414,050 11,456,415 10,896,787 10,214,460 9,846,677 10,167,204 9,999,579 10,410,644 11,298,765 11,450,657 12,859,424 13,292,095 14,255,636 15,407,713 15,110,339 15,022,328 16,518,955 17,492,634 17,666,856 19,505,184 19,846,901
NACC2 Index: Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                          
Accumulated Value 10,000 10,233 11,028 11,265   11,605 12,514 12,818 12,965 13,956 13,202 13,458 13,279 14,127 15,231 14,369 14,780 17,123 18,115 19,470 21,279 22,828 22,913 21,794 20,429 19,693 20,334 19,999 20,821 22,598 22,901 25,719 26,584 28,511 30,815 30,221 30,045 33,038 34,985 35,334 39,010 39,694
NACC2 Index: Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                          
Accumulated Value 5,000,000 5,116,612 5,513,817 5,632,496   5,802,313 6,256,892 6,408,855 6,482,327 6,977,843 6,600,859 6,728,954 6,639,384 7,063,661 7,615,631 7,184,422 7,390,068 8,561,505 9,057,250 9,735,081 10,639,299 11,414,050 11,456,415 10,896,787 10,214,460 9,846,677 10,167,204 9,999,579 10,410,644 11,298,765 11,450,657 12,859,424 13,292,095 14,255,636 15,407,713 15,110,339 15,022,328 16,518,955 17,492,634 17,666,856 19,505,184 19,846,901
NACC2 Index: Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                          
Accumulated Value 10,000 10,233 11,028 11,265   11,605 12,514 12,818 12,965 13,956 13,202 13,458 13,279 14,127 15,231 14,369 14,780 17,123 18,115 19,470 21,279 22,828 22,913 21,794 20,429 19,693 20,334 19,999 20,821 22,598 22,901 25,719 26,584 28,511 30,815 30,221 30,045 33,038 34,985 35,334 39,010 39,694
NACC2 Index: Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                          
Accumulated Value 5,000,000 5,116,612 5,513,817 5,632,496   5,802,313 6,256,892 6,408,855 6,482,327 6,977,843 6,600,859 6,728,954 6,639,384 7,063,661 7,615,631 7,184,422 7,390,068 8,561,505 9,057,250 9,735,081 10,639,299 11,414,050 11,456,415 10,896,787 10,214,460 9,846,677 10,167,204 9,999,579 10,410,644 11,298,765 11,450,657 12,859,424 13,292,095 14,255,636 15,407,713 15,110,339 15,022,328 16,518,955 17,492,634 17,666,856 19,505,184 19,846,901
NACC2 Index: Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                          
Accumulated Value 10,000 10,233 11,028 11,265   11,605 12,514 12,818 12,965 13,956 13,202 13,458 13,279 14,127 15,231 14,369 14,780 17,123 18,115 19,470 21,279 22,828 22,913 21,794 20,429 19,693 20,334 19,999 20,821 22,598 22,901 25,719 26,584 28,511 30,815 30,221 30,045 33,038 34,985 35,334 39,010 39,694
NACC2 Index: Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                          
Accumulated Value 5,000,000 5,116,612 5,513,817 5,632,496   5,802,313 6,256,892 6,408,855 6,482,327 6,977,843 6,600,859 6,728,954 6,639,384 7,063,661 7,615,631 7,184,422 7,390,068 8,561,505 9,057,250 9,735,081 10,639,299 11,414,050 11,456,415 10,896,787 10,214,460 9,846,677 10,167,204 9,999,579 10,410,644 11,298,765 11,450,657 12,859,424 13,292,095 14,255,636 15,407,713 15,110,339 15,022,328 16,518,955 17,492,634 17,666,856 19,505,184 19,846,901
NACC2 Index: Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                          
Accumulated Value 10,000 10,233 11,028 11,265   11,605 12,514 12,818 12,965 13,956 13,202 13,458 13,279 14,127 15,231 14,369 14,780 17,123 18,115 19,470 21,279 22,828 22,913 21,794 20,429 19,693 20,334 19,999 20,821 22,598 22,901 25,719 26,584 28,511 30,815 30,221 30,045 33,038 34,985 35,334 39,010 39,694
NACC2 Index: Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                          
Accumulated Value 5,000,000 5,116,612 5,513,817 5,632,496   5,802,313 6,256,892 6,408,855 6,482,327 6,977,843 6,600,859 6,728,954 6,639,384 7,063,661 7,615,631 7,184,422 7,390,068 8,561,505 9,057,250 9,735,081 10,639,299 11,414,050 11,456,415 10,896,787 10,214,460 9,846,677 10,167,204 9,999,579 10,410,644 11,298,765 11,450,657 12,859,424 13,292,095 14,255,636 15,407,713 15,110,339 15,022,328 16,518,955 17,492,634 17,666,856 19,505,184 19,846,901
NACC2 Index: Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                          
Accumulated Value 10,000 10,233 11,028 11,265   11,605 12,514 12,818 12,965 13,956 13,202 13,458 13,279 14,127 15,231 14,369 14,780 17,123 18,115 19,470 21,279 22,828 22,913 21,794 20,429 19,693 20,334 19,999 20,821 22,598 22,901 25,719 26,584 28,511 30,815 30,221 30,045 33,038 34,985 35,334 39,010 39,694
NACC2 Index: Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                          
Accumulated Value 5,000,000 5,116,612 5,513,817 5,632,496   5,802,313 6,256,892 6,408,855 6,482,327 6,977,843 6,600,859 6,728,954 6,639,384 7,063,661 7,615,631 7,184,422 7,390,068 8,561,505 9,057,250 9,735,081 10,639,299 11,414,050 11,456,415 10,896,787 10,214,460 9,846,677 10,167,204 9,999,579 10,410,644 11,298,765 11,450,657 12,859,424 13,292,095 14,255,636 15,407,713 15,110,339 15,022,328 16,518,955 17,492,634 17,666,856 19,505,184 19,846,901
NACC2 Index: Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                          
Accumulated Value 10,000 10,233 11,028 11,265   11,605 12,514 12,818 12,965 13,956 13,202 13,458 13,279 14,127 15,231 14,369 14,780 17,123 18,115 19,470 21,279 22,828 22,913 21,794 20,429 19,693 20,334 19,999 20,821 22,598 22,901 25,719 26,584 28,511 30,815 30,221 30,045 33,038 34,985 35,334 39,010 39,694
NACC2 Index: Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Dow Jones U.S. Total Stock Market Float Adjusted Index                                                                          
Accumulated Value 5,000,000 5,116,612 5,513,817 5,632,496   5,802,313 6,256,892 6,408,855 6,482,327 6,977,843 6,600,859 6,728,954 6,639,384 7,063,661 7,615,631 7,184,422 7,390,068 8,561,505 9,057,250 9,735,081 10,639,299 11,414,050 11,456,415 10,896,787 10,214,460 9,846,677 10,167,204 9,999,579 10,410,644 11,298,765 11,450,657 12,859,424 13,292,095 14,255,636 15,407,713 15,110,339 15,022,328 16,518,955 17,492,634 17,666,856 19,505,184 19,846,901
NACC2 Index: Russell 2500 Value Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Russell 2500 Value Index                                                                          
Accumulated Value 10,000 10,701 11,273 10,930   11,112 12,098 11,695 12,444 13,048 11,968 12,204 11,524 11,748 12,768 11,452 10,178 11,165 12,898 15,354 17,150 17,027 16,756 17,004 16,496 15,607 16,289 16,375 14,890 16,503 16,082 17,963 18,407 19,496 21,246 19,638 19,063 21,334 22,116 24,457 26,490 27,900
NACC2 Index: Russell 1000 Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Russell 1000 Index                                                                          
Accumulated Value 10,000 10,200 11,011 11,276   11,616 12,505 12,849 12,922 13,918 13,246 13,491 13,370 14,265 15,379 14,546 15,046 17,474 18,364 19,533 21,465 23,110 23,262 22,213 20,884 20,114 20,783 20,390 21,395 23,212 23,603 26,469 27,387 29,386 31,723 31,264 31,148 34,157 36,192 36,496 40,133 40,910
NACC2 Index: Russell 1000 Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Russell 1000 Index                                                                          
Accumulated Value 5,000,000 5,099,807 5,505,249 5,638,015   5,807,924 6,252,690 6,424,594 6,460,929 6,958,926 6,623,141 6,745,322 6,684,916 7,132,260 7,689,687 7,273,070 7,523,049 8,737,102 9,182,137 9,766,566 10,732,508 11,554,998 11,631,025 11,106,447 10,441,898 10,056,923 10,391,631 10,195,058 10,697,478 11,606,037 11,801,313 13,234,673 13,693,545 14,692,840 15,861,527 15,631,851 15,574,081 17,078,428 18,095,846 18,247,826 20,066,627 20,455,183
NACC2 Index: Russell 1000 Value Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Russell 1000 Value Index                                                                          
Accumulated Value 10,000 10,386 11,107 10,962   11,158 11,926 11,968 11,866 12,549 12,279 12,346 12,038 12,626 13,670 12,413 11,841 12,733 13,905 15,171 17,096 17,373 16,999 17,445 17,255 16,291 17,411 16,955 16,471 17,692 17,647 19,331 20,047 21,433 22,864 22,377 21,833 23,432 24,522 26,484 28,066 30,397
NACC2 Index: Russell 1000 Value Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Russell 1000 Value Index                                                                          
Accumulated Value 5,000,000 5,192,923 5,553,254 5,480,992   5,578,877 5,962,987 5,983,870 5,933,026 6,274,515 6,139,391 6,172,954 6,018,959 6,313,234 6,834,840 6,206,270 5,920,294 6,366,286 6,952,636 7,585,363 8,547,909 8,686,473 8,499,380 8,722,691 8,627,561 8,145,724 8,705,416 8,477,583 8,235,324 8,845,774 8,823,385 9,665,655 10,023,349 10,716,618 11,431,994 11,188,318 10,916,385 11,716,231 12,261,016 13,242,220 14,032,901 15,198,683
NACC2 Index: Russell 1000 Growth Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Russell 1000 Growth Index                                                                          
Accumulated Value 10,000 10,014 10,915 11,587   12,082 13,099 13,765 14,024 15,371 14,224 14,677 14,780 16,028 17,213 16,894 18,660 23,135 23,478 24,371 26,110 29,734 30,686 27,429 24,478 24,068 24,046 23,770 26,814 29,347 30,338 34,688 35,825 38,373 41,880 41,538 42,137 47,036 50,404 47,678 54,212 52,124
NACC2 Index: Russell 1000 Growth Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Russell 1000 Growth Index                                                                          
Accumulated Value 5,000,000 5,007,071 5,457,515 5,793,731   6,040,797 6,549,554 6,882,704 7,011,775 7,685,543 7,112,110 7,338,442 7,389,973 8,013,973 8,606,515 8,447,088 9,330,022 11,567,411 11,739,147 12,185,372 13,054,940 14,867,041 15,343,236 13,714,613 12,238,815 12,033,943 12,023,018 11,885,099 13,407,235 14,673,724 15,169,224 17,343,783 17,912,258 19,186,327 20,940,049 20,768,784 21,068,713 23,518,109 25,201,980 23,838,859 27,106,221 26,062,072
NACC2 Index: Russell 2000 Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Russell 2000 Index                                                                          
Accumulated Value 10,000 10,705 11,261 11,168   11,491 12,668 12,445 13,487 14,416 12,740 13,139 12,267 12,557 13,698 12,492 11,845 13,313 15,560 18,863 19,493 19,581 18,987 17,729 16,195 16,079 16,516 16,663 15,437 16,827 16,092 18,337 18,543 19,935 21,955 19,564 18,763 21,563 22,854 24,130 26,846 27,269
NACC2 Index: Russell 2000 Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Russell 2000 Index                                                                          
Accumulated Value 5,000,000 5,352,314 5,630,594 5,583,835   5,745,737 6,333,782 6,222,426 6,743,297 7,207,878 6,370,116 6,569,596 6,133,367 6,278,568 6,848,775 6,246,125 5,922,454 6,656,561 7,779,788 9,431,438 9,746,257 9,790,547 9,493,291 8,864,621 8,097,664 8,039,627 8,257,880 8,331,407 7,718,743 8,413,610 8,046,066 9,168,660 9,271,373 9,967,700 10,977,525 9,782,182 9,381,280 10,781,704 11,427,017 12,064,941 13,423,049 13,634,494
NACC2 Index: Russell 2000 Value Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Russell 2000 Value Index                                                                          
Accumulated Value 10,000 11,041 11,580 11,169   11,347 12,518 11,924 12,995 13,621 12,289 12,451 11,524 11,593 12,776 11,294 9,831 10,881 12,820 15,932 17,636 17,354 17,052 16,989 16,284 15,587 16,242 16,242 14,412 15,926 15,474 17,152 17,547 18,991 20,510 18,453 17,348 20,097 21,130 23,056 25,043 26,117
NACC2 Index: Russell 2000 Value Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Russell 2000 Value Index                                                                          
Accumulated Value 5,000,000 5,520,661 5,790,180 5,584,280   5,673,251 6,258,931 5,961,820 6,497,378 6,810,589 6,144,452 6,225,493 5,762,135 5,796,392 6,387,758 5,647,000 4,915,619 5,440,370 6,410,031 7,965,866 8,817,813 8,676,941 8,525,801 8,494,391 8,141,806 7,793,402 8,121,148 8,120,795 7,205,891 7,962,869 7,736,799 8,576,232 8,773,673 9,495,413 10,254,979 9,226,289 8,674,045 10,048,665 10,565,092 11,528,232 12,521,549 13,058,567
NACC2 Index: Russell 2000 Growth Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Russell 2000 Growth Index                                                                          
Accumulated Value 10,000 10,365 10,939 11,169   11,639 12,820 12,956 13,970 15,213 13,180 13,823 13,009 13,537 14,621 13,723 13,962 15,876 18,414 21,803 20,961 21,529 20,615 18,009 15,572 16,091 16,295 16,584 15,990 17,181 16,159 18,936 18,929 20,218 22,693 20,039 19,582 22,336 23,853 24,424 27,781 27,528
NACC2 Index: Russell 2000 Growth Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Russell 2000 Growth Index                                                                          
Accumulated Value 5,000,000 5,182,378 5,469,260 5,584,705   5,819,287 6,410,116 6,477,827 6,985,231 7,606,736 6,590,216 6,911,554 6,504,401 6,768,595 7,310,424 6,861,658 6,980,796 7,938,037 9,207,139 10,901,579 10,480,644 10,764,705 10,307,449 9,004,627 7,786,082 8,045,533 8,147,279 8,291,902 7,994,785 8,590,690 8,079,376 9,468,022 9,464,455 10,108,976 11,346,743 10,019,693 9,791,246 11,168,094 11,926,271 12,212,076 13,890,735 13,764,190
NACC2 Index: Russell 3000 Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Russell 3000 Index                                                                          
Accumulated Value 10,000 10,238 11,029 11,268   11,606 12,518 12,819 12,965 13,956 13,209 13,466 13,289 14,139 15,256 14,395 14,812 17,171 18,158 19,481 21,316 22,845 22,941 21,876 20,531 19,810 20,462 20,110 20,949 22,734 23,042 25,862 26,727 28,677 30,989 30,396 30,233 33,220 35,199 35,568 39,135 39,898
NACC2 Index: Russell 3000 Index                                                                                    
Account Value [Line Items]                                                                                    
Line Graph and Table Measure Name         Russell 3000 Index                                                                          
Accumulated Value $ 5,000,000 $ 5,118,776 $ 5,514,627 $ 5,633,946   $ 5,803,136 $ 6,258,836 $ 6,409,311 $ 6,482,500 $ 6,978,173 $ 6,604,738 $ 6,732,934 $ 6,644,317 $ 7,069,582 $ 7,627,846 $ 7,197,672 $ 7,405,990 $ 8,585,406 $ 9,078,940 $ 9,740,415 $ 10,658,081 $ 11,422,283 $ 11,470,267 $ 10,937,873 $ 10,265,446 $ 9,905,181 $ 10,231,181 $ 10,054,866 $ 10,474,313 $ 11,366,922 $ 11,521,195 $ 12,930,766 $ 13,363,447 $ 14,338,734 $ 15,494,321 $ 15,197,967 $ 15,116,507 $ 16,609,978 $ 17,599,685 $ 17,784,115 $ 19,567,603 $ 19,949,239