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Shareholder Report, Line Graph (Details) - USD ($)
12 Months Ended 24 Months Ended 36 Months Ended 48 Months Ended 60 Months Ended 72 Months Ended 84 Months Ended 96 Months Ended 108 Months Ended 120 Months Ended
Dec. 31, 2015
Dec. 31, 2025
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2018
Dec. 31, 2019
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2022
Dec. 31, 2023
Dec. 31, 2024
Dec. 31, 2025
C000022349 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   American Growth Trust (Series III/JAHGX)                    
Accumulated Value $ 10,000   $ 10,947.8663 $ 14,037.245348 $ 13,998.268269 $ 18,310.113689 $ 27,828.086874 $ 33,950.161909 $ 23,781.579165 $ 32,924.883144 $ 43,328.784702 $ 52,067.207047
C000022348 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   American Growth Trust (Series II/JAHKX)                    
Accumulated Value 10,000   10,903.1406 13,927.346998 13,828.430105 18,004.006163 27,268.032529 33,127.203572 23,107.158016 31,861.243365 41,746.300217 49,981.189592
C000022347 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   American Growth Trust (Series I/JAHJX)                    
Accumulated Value 10,000   10,907.6655 13,947.37369 13,855.775987 18,054.524484 27,356.897779 33,251.257925 23,209.295569 32,026.860665 41,984.967968 50,300.710572
C000022351 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   American International Trust (Series I/JAHLX)                    
Accumulated Value 10,000   10,312.1588 13,576.120405 11,748.955432 14,380.910489 16,330.310496 16,035.03415 12,649.384212 14,595.871961 15,002.569002 18,923.686944
C000022352 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   American International Trust (Series II/JAHMX)                    
Accumulated Value 10,000   10,297.2139 13,540.135141 11,700.276529 14,305.690128 16,221.950911 15,903.204824 12,538.252872 14,447.677197 14,825.001403 18,692.435989
C000022353 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   American International Trust (Series III/JAHPX)                    
Accumulated Value 10,000   10,348.6501 13,672.236744 11,867.380768 14,584.185232 16,622.444708 16,373.056342 12,966.951585 15,010.94137 15,476.471041 19,597.500868
C000022354 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Blue Chip Growth Trust (Series NAV/JAEDX)                    
Accumulated Value 10,000   10,085.1879 13,750.040599 14,029.778025 18,214.449036 24,480.560115 28,621.831203 17,732.053891 26,524.727053 36,001.395594 42,687.72527
C000022356 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Blue Chip Growth Trust (Series II/JADYX)                    
Accumulated Value 10,000   10,061.6525 13,680.190593 13,923.491825 18,034.798213 24,178.030664 28,199.469902 17,425.910647 26,008.510575 35,204.176846 41,632.630278
C000022355 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Blue Chip Growth Trust (Series I/JADZX)                    
Accumulated Value 10,000   10,081.1502 13,738.701881 14,009.605177 18,183.772223 24,421.300694 28,540.442459 17,670.28324 26,427.15116 35,848.385094 42,487.147171
C000117967 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   500 Index Trust (Series I/JFIVX)                    
Accumulated Value 10,000   11,159.2462 13,561.04027 12,924.676115 16,938.256051 20,005.821988 25,666.211244 20,951.508672 26,377.294893 32,865.792382 38,624.667329
C000117968 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   500 Index Trust (Series II/JAGKX)                    
Accumulated Value 10,000   11,137.3946 13,507.876219 12,848.240426 16,809.077226 19,806.083083 25,359.006456 20,664.34507 25,961.669147 32,285.890732 37,862.008875
C000022362 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   500 Index Trust (Series NAV/JAGMX)                    
Accumulated Value 10,000   11,164.4341 13,569.324658 12,938.919209 16,970.432314 20,048.328737 25,733.286363 21,022.151581 26,477.95364 33,009.424301 38,807.925462
C000022366 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   U.S. Growth Trust (Series NAV/JAFGX)                    
Accumulated Value 10,000   9,900.4541 13,515.466704 13,417.913282 17,829.41657 27,865.790568 32,256.261832 20,129.72083 30,788.961778 40,244.995493 48,600.008281
C000022368 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   U.S. Growth Trust (Series II/JAFJX)                    
Accumulated Value 10,000   9,873.5446 13,448.065926 13,314.81442 17,661.484053 27,498.740456 31,799.452992 19,754.200202 30,127.158977 39,329.016447 47,410.346679
C000022367 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   U.S. Growth Trust (Series I/JAFHX)                    
Accumulated Value 10,000   9,892.3526 13,506.093404 13,397.75171 17,804.850896 27,782.612599 32,157.045797 20,034.335072 30,621.615274 40,056.219762 48,307.095643
C000022399 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Equity Income Trust (Series I/JAEGX)                    
Accumulated Value 10,000   11,912.3897 13,852.801122 12,525.863467 15,825.462997 15,986.4203 20,049.373495 19,366.778339 21,185.085649 23,658.405206 27,062.457932
C000022400 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Equity Income Trust (Series II/JAEFX)                    
Accumulated Value 10,000   11,891.0965 13,794.013928 12,448.613124 15,706.600414 15,824.0261 19,813.50313 19,093.004506 20,860.362788 23,230.332385 26,525.22888
C000022398 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Equity Income Trust (Series NAV/JAEEX)                    
Accumulated Value 10,000   11,918.2405 13,858.205996 12,539.548637 15,858.176674 16,018.491422 20,101.931983 19,422.116203 21,270.82995 23,753.029026 27,178.238377
C000022402 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Financial Industries Trust (Series NAV/JAFNX)                    
Accumulated Value 10,000   11,947.0941 13,774.031424 11,793.507522 15,533.031334 15,891.431024 20,611.47415 17,806.171721 18,733.091755 24,419.714146 27,376.911004
C000022404 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Financial Industries Trust (Series II/JEFCX)                    
Accumulated Value 10,000   11,920.8198 13,711.133817 11,706.214911 15,395.260322 15,700.867632 20,313.919925 17,504.030063 18,374.92715 23,886.206331 26,710.16239
C000022403 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Financial Industries Trust (Series I/JEFSX)                    
Accumulated Value 10,000   11,936.624 13,760.934533 11,767.427303 15,508.067802 15,844.931259 20,551.024785 17,741.955352 18,667.993163 24,311.867935 27,228.65852
C000022411 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Global Equity Trust (Series I/JEFGX)                    
Accumulated Value 10,000   10,946.5426 13,012.987564 11,127.230641 12,912.280008 13,763.951788 16,695.956781 14,218.76632 17,075.893898 18,864.53658 22,284.8974
C000022412 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Global Equity Trust (Series II/JAJFX)                    
Accumulated Value 10,000   10,923.8281 12,958.626383 11,060.198503 12,811.39424 13,634.147999 16,498.630002 14,022.362669 16,800.564727 18,527.674373 21,845.557866
C000022410 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Global Equity Trust (Series NAV/JAJGX)                    
Accumulated Value 10,000   10,946.5937 13,015.471339 11,138.759073 12,927.617938 13,794.83448 16,736.234199 14,258.242761 17,134.008133 18,938.195716 22,384.361578
C000022442 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Health Sciences Trust (Series NAV/JAFMX)                    
Accumulated Value 10,000   8,946.1722 11,415.953053 11,503.112941 14,800.6619 18,835.745633 20,950.997419 18,223.358153 19,000.373352 19,352.858588 23,132.006434
C000022444 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Health Sciences Trust (Series II/JAFKX)                    
Accumulated Value 10,000   8,922.7176 11,354.763909 11,414.00773 14,655.075719 18,595.718451 20,635.244597 17,903.259754 18,622.324846 18,924.190125 22,561.567076
C000022443 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Health Sciences Trust (Series I/JEHSX)                    
Accumulated Value 10,000   8,942.8501 11,402.699066 11,481.005163 14,773.653311 18,787.421492 20,890.419886 18,156.603653 18,928.325035 19,264.941825 23,020.130942
C000022475 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   American Growth-Income Trust (Series I/JAHQX)                    
Accumulated Value 10,000   11,110.4742 13,558.381984 13,262.806409 16,671.391556 18,856.749915 23,308.950007 19,397.918443 24,379.830165 30,161.203604 35,485.543684
C000022476 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   American Growth-Income Trust (Series II/JAHRX)                    
Accumulated Value 10,000   11,105.9451 13,536.845349 13,230.123581 16,622.874862 18,787.902581 23,205.777733 19,297.808502 24,222.484375 29,954.078389 35,204.517913
C000022477 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   American Growth-Income Trust (Series III/JAHUX)                    
Accumulated Value 10,000   11,154.1995 13,651.465263 13,403.462916 16,910.243489 19,188.63111 23,818.429293 19,874.911754 25,071.071885 31,130.536855 36,765.294463
C000022620 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Mid Cap Index Trust (Series NAV/JAEYX)                    
Accumulated Value 10,000   12,016.9808 13,923.286257 12,328.44204 15,498.825428 17,555.266002 21,816.71027 18,896.100721 21,920.240995 24,873.253003 26,620.755479
C000022622 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Mid Cap Index Trust (Series II/JAEZX)                    
Accumulated Value 10,000   11,991.8917 13,851.701233 12,237.107183 15,349.365513 17,341.776549 21,496.264971 18,575.842817 21,497.026174 24,320.033709 25,975.078883
C000022621 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Mid Cap Index Trust (Series I/JECIX)                    
Accumulated Value 10,000   12,011.2953 13,910.295621 12,316.739249 15,468.111608 17,512.42225 21,752.22013 18,830.067554 21,844.174436 24,763.67063 26,492.043593
C000022625 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Mid Cap Growth Trust (Series I/JAETX)                    
Accumulated Value 10,000   10,058.9766 12,929.797356 12,728.454034 17,123.090893 28,320.546972 29,322.817926 19,164.765115 22,749.9206 28,470.352645 30,210.207497
C000022626 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Mid Cap Growth Trust (Series II/JAEUX)                    
Accumulated Value 10,000   10,040.5977 12,877.987675 12,657.795206 16,993.095254 28,041.372625 28,967.480177 18,895.29961 22,415.337852 27,961.058534 29,621.453856
C000022624 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Mid Cap Growth Trust (Series NAV/JAEVX)                    
Accumulated Value 10,000   10,058.0967 12,940.80716 12,741.08146 17,153.896924 28,384.496632 29,399.289221 19,224.487451 22,852.699976 28,597.369876 30,361.084352
C000022636 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Mid Value Trust (Series NAV/JAGWX)                    
Accumulated Value 10,000   12,409.0629 13,830.710914 12,353.057123 14,760.286494 16,195.184572 20,124.728283 19,259.401996 22,851.562426 26,592.904549 28,153.934107
C000022638 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Mid Value Trust (Series II/JAGYX)                    
Accumulated Value 10,000   12,377.416 13,764.449412 12,260.673128 14,609.153326 15,979.345086 19,829.585223 18,933.196358 22,387.590977 26,001.501582 27,471.266621
C000022637 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Mid Value Trust (Series I/JEMUX)                    
Accumulated Value 10,000   12,402.1555 13,819.951686 12,321.642276 14,728.950607 16,142.90026 20,071.567386 19,207.026169 22,763.296377 26,461.135144 28,008.502944
C000022665 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Fundamental All Cap Core Trust (Series I/JEQAX)                    
Accumulated Value 10,000   10,833.8868 13,834.572912 12,014.072193 16,392.826548 20,798.325899 27,168.191735 20,569.573991 27,852.219115 34,580.584411 36,233.642854
C000022666 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Fundamental All Cap Core Trust (Series II/JFLGX)                    
Accumulated Value 10,000   10,811.5546 13,776.962499 11,938.912767 16,258.824015 20,591.364879 26,838.663082 20,280.937961 27,399.518589 33,954.727374 35,505.328741
C000022664 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Fundamental All Cap Core Trust (Series NAV/JADDX)                    
Accumulated Value 10,000   10,839.8161 13,849.655589 12,026.508533 16,425.469454 20,855.300467 27,253.544813 20,641.291678 27,955.899973 34,732.18592 36,413.340419
C000022668 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   International Equity Index Trust (Series NAV/JVANX)                    
Accumulated Value 10,000   10,443.1272 13,309.323454 11,432.584671 13,883.864814 15,377.545554 16,545.093543 13,871.444646 16,010.093073 16,794.774151 22,264.428849
C000117970 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   International Equity Index Trust (Series II/JAJEX)                    
Accumulated Value 10,000   10,423.9285 13,242.332254 11,352.962371 13,749.772086 15,190.219659 16,302.976466 13,630.699022 15,699.427214 16,424.074468 21,722.66172
C000117969 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   International Equity Index Trust (Series I/JIEQX)                    
Accumulated Value 10,000   10,444.9504 13,296.574773 11,422.591425 13,863.621715 15,339.160801 16,503.847788 13,821.31666 15,944.479739 16,727.654726 22,164.069579
C000022685 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   International Small Company Trust (Series I/JAJCX)                    
Accumulated Value 10,000   10,490.2668 13,580.389622 10,851.471575 13,304.141473 14,417.467953 16,395.978089 13,416.892159 15,220.736422 15,687.500396 21,175.595768
C000022686 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   International Small Company Trust (Series II/JAADX)                    
Accumulated Value 10,000   10,469.9116 13,523.759187 10,782.077074 13,192.299348 14,270.388035 16,192.030354 13,221.253285 14,984.103407 15,405.911612 20,747.252399
C000022684 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   International Small Company Trust (Series NAV/JAJDX)                    
Accumulated Value 10,000   10,495.4183 13,601.60924 10,871.071631 13,339.180269 14,461.382028 16,452.479191 13,462.946909 15,292.41936 15,768.121108 21,288.113623
C000022688 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Disciplined Value International Trust (Series NAV/JAJJX)                    
Accumulated Value 10,000   11,220.0778 13,155.779759 11,187.532235 12,575.399645 12,987.01247 14,694.340064 13,996.065171 16,802.16161 16,743.991518 23,611.876696
C000022690 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Disciplined Value International Trust (Series II/JAJIX)                    
Accumulated Value 10,000   11,194.2354 13,083.454605 11,098.626638 12,444.950648 12,826.915429 14,476.583868 13,755.428355 16,463.435188 16,371.117628 23,017.586255
C000022689 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Disciplined Value International Trust (Series I/JAJHX)                    
Accumulated Value 10,000   11,224.0175 13,147.908493 11,171.538555 12,549.05707 12,959.96214 14,652.352404 13,954.004731 16,739.782794 16,675.522618 23,496.585447
C000022704 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Small Cap Index Trust (Series I/JESIX)                    
Accumulated Value 10,000   12,097.5537 13,837.926406 12,257.072837 15,326.637573 18,282.822569 20,931.852909 16,609.262015 19,348.772598 21,446.279387 24,073.408293
C000022705 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Small Cap Index Trust (Series II/JAJOX)                    
Accumulated Value 10,000   12,070.386 13,781.827925 12,190.175368 15,210.359459 18,108.325972 20,689.003083 16,383.121281 19,041.260755 21,059.977138 23,612.226712
C000022703 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Small Cap Index Trust (Series NAV/JAEWX)                    
Accumulated Value 10,000   12,101.392 13,847.204884 12,281.835284 15,360.627453 18,328.459199 21,001.738837 16,669.448065 19,423.682459 21,534.368762 24,208.723095
C000022707 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Small Cap Opportunities Trust (Series NAV/JADMX)                    
Accumulated Value 10,000   11,950.8196 13,287.544347 11,453.026378 14,384.690181 15,812.337741 20,739.893225 18,658.761498 22,040.339223 23,945.456775 26,153.961818
C000022709 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Small Cap Opportunities Trust (Series II/JADPX)                    
Accumulated Value 10,000   11,924.8099 13,220.388265 11,366.973912 14,237.713972 15,612.228432 20,428.515504 18,335.913573 21,604.408984 23,413.450065 25,506.409506
C000022708 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Small Cap Opportunities Trust (Series I/JADLX)                    
Accumulated Value 10,000   11,946.6408 13,269.58552 11,432.511457 14,351.882256 15,769.909936 20,673.81433 18,592.973003 21,948.96763 23,832.70639 26,021.712111
C000022712 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Small Cap Core Trust (Series I/JESVX)                    
Accumulated Value 10,000   12,267.1679 12,724.758288 11,134.309328 14,087.336596 13,143.644935 16,585.463193 14,886.599271 16,971.968582 17,977.656837 17,988.586174
C000022713 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Small Cap Core Trust (Series II/JAGZX)                    
Accumulated Value 10,000   12,244.9742 12,673.329602 11,069.066796 13,983.788961 13,012.223411 16,391.447864 14,672.4664 16,703.986313 17,662.481427 17,640.97294
C000022711 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Small Cap Core Trust (Series NAV/JAHBX)                    
Accumulated Value 10,000   12,267.788 12,732.43685 11,147.55264 14,115.168379 13,171.861839 16,636.158843 14,930.643794 17,031.282802 18,054.602149 18,074.117188
C000022723 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Small Company Value Trust (Series NAV/JAEQX)                    
Accumulated Value 10,000   13,232.7547 14,765.177034 12,855.521976 16,152.623077 17,647.403292 21,672.839161 17,620.93825 20,003.847333 22,068.15436 23,636.993798
C000022725 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Small Company Value Trust (Series II/JAERX)                    
Accumulated Value 10,000   13,204.6451 14,691.184035 12,767.986402 15,987.647016 17,437.878803 21,363.623468 17,315.88422 19,632.557495 21,571.833646 23,082.749251
C000022724 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Small Company Value Trust (Series I/JAEPX)                    
Accumulated Value 10,000   13,231.5637 14,751.927662 12,842.740265 16,120.945139 17,611.321842 21,609.1671 17,560.724002 19,929.177482 21,961.251082 23,523.812764
C000022744 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Fundamental Large Cap Value Trust (Series I/JVFLX)                    
Accumulated Value 10,000   11,017.1402 12,937.503975 10,733.80148 14,582.244135 16,326.548847 21,218.028922 19,530.249935 24,110.675156 28,205.702145 32,700.191088
C000022745 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Fundamental Large Cap Value Trust (Series II/JADJX)                    
Accumulated Value 10,000   10,995.6912 12,886.617137 10,665.907127 14,461.895901 16,161.439107 20,964.331944 19,259.875782 23,732.48965 27,704.419873 32,057.932029
C000022743 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Fundamental Large Cap Value Trust (Series NAV/JADIX)                    
Accumulated Value 10,000   11,022.078 12,955.292615 10,749.341825 14,616.032075 16,371.36944 21,282.478548 19,609.40268 24,216.191609 28,337.199936 32,873.388581
C000022759 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Total Stock Market Index Trust (Series NAV/JAFEX)                    
Accumulated Value 10,000   11,237.6835 13,558.599576 12,791.519771 16,590.61176 20,158.100463 25,099.134108 19,994.434062 25,109.865257 31,017.124524 36,190.161793
C000022761 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Total Stock Market Index Trust (Series II/JAFFX)                    
Accumulated Value 10,000   11,215.1771 13,494.755268 12,696.336723 16,429.429945 19,910.210704 24,727.056123 19,647.059736 24,608.075723 30,324.221652 35,305.146087
C000022760 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Total Stock Market Index Trust (Series I/JETSX)                    
Accumulated Value 10,000   11,238.2861 13,551.951393 12,779.171151 16,565.243281 20,117.696146 25,035.955829 19,926.489779 25,013.278259 30,885.949007 36,022.733879
C000022812 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Real Estate Securities Trust (Series I/JADBX)                    
Accumulated Value 10,000   10,691.952 11,358.623541 10,965.210459 14,189.246047 13,388.992861 19,653.202676 14,050.385507 15,879.102895 17,579.47042 17,689.958271
C000022813 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Real Estate Securities Trust (Series II/JAJLX)                    
Accumulated Value 10,000   10,669.1335 11,315.343072 10,903.293609 14,074.342102 13,258.72891 19,419.058803 13,856.587865 15,630.134116 17,270.275675 17,339.088398
C000022811 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Real Estate Securities Trust (Series NAV/JAJMX)                    
Accumulated Value 10,000   10,695.9176 11,365.582049 10,976.213915 14,210.690559 13,417.338684 19,696.40859 14,092.512475 15,933.455993 17,652.624748 17,763.64034
C000022819 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Science & Technology Trust (Series NAV/JAFSX)                    
Accumulated Value 10,000   10,841.4552 15,309.626852 15,222.713641 21,020.78846 33,123.681048 35,966.399741 23,148.728369 35,818.608438 49,422.058519 61,103.045079
C000022821 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Science & Technology Trust (Series II/JAFUX)                    
Accumulated Value 10,000   10,815.3449 15,229.286156 15,110.175777 20,813.170738 32,708.628981 35,425.195752 22,758.354813 35,131.140143 48,331.932346 59,586.519162
C000022820 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Science & Technology Trust (Series I/JESTX)                    
Accumulated Value 10,000   10,838.7618 15,296.731088 15,203.534377 20,989.589065 33,049.350776 35,867.828163 23,072.43527 35,688.007268 49,214.59391 60,820.925236
C000022832 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Small Cap Stock Trust (Series I/JESGX)                    
Accumulated Value 10,000   10,229.0897 12,936.414278 12,264.876216 16,928.334401 25,654.042337 25,962.856463 17,882.927604 20,762.683391 23,180.256194 26,114.400969
C000022833 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Small Cap Stock Trust (Series II/JAGQX)                    
Accumulated Value 10,000   10,214.1937 12,897.923045 12,195.834922 16,798.992072 25,404.915634 25,673.081032 17,649.766204 20,453.934584 22,763.249865 25,608.656098
C000022831 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Small Cap Stock Trust (Series NAV/JAGPX)                    
Accumulated Value 10,000   10,226.7485 12,957.252408 12,280.325245 16,958.835295 25,713.286076 26,039.561449 17,932.638223 20,858.308518 23,267.684065 26,221.526562
C000047746 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   American Asset Allocation Trust (Series III/JAIDX)                    
Accumulated Value 10,000   10,943.2658 12,721.521214 12,133.519782 14,700.905106 16,530.822173 19,021.937396 16,465.403847 18,809.210616 21,912.039317 25,365.857244
C000047745 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   American Asset Allocation Trust (Series II/JAIFX)                    
Accumulated Value 10,000   10,891.5048 12,600.233561 11,962.763301 14,435.342421 16,156.009831 18,516.424678 15,967.188687 18,151.184588 21,041.465958 24,263.876412
C000047744 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   American Asset Allocation Trust (Series I/JAHZX)                    
Accumulated Value 10,000   10,899.1928 12,620.070493 12,000.747222 14,494.182435 16,236.22996 18,624.093274 16,062.130411 18,294.027359 21,224.653524 24,491.726661
C000047759 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Disciplined Value Emerging Markets Equity Trust (Series I/JAJBX)                    
Accumulated Value 10,000   11,800.2283 15,659.135537 13,530.178974 15,009.770478 15,543.748166 17,281.781849 15,264.571047 17,583.698703 17,148.238405 22,615.363464
C000047760 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Disciplined Value Emerging Markets Equity Trust (Series II/JEMTX)                    
Accumulated Value 10,000   11,761.6492 15,580.149062 13,431.983817 14,870.091925 15,369.305447 17,072.441044 15,045.629013 17,280.063653 16,822.321333 22,151.930655
C000047761 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Disciplined Value Emerging Markets Equity Trust (Series NAV/JHVTX)                    
Accumulated Value 10,000   11,808.2423 15,666.570829 13,554.850404 15,031.173276 15,590.86743 17,344.382892 15,327.149123 17,649.263714 17,218.86824 22,728.654337
C000047763 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   American Global Growth Trust (Series III/JAHVX)                    
Accumulated Value 10,000   10,062.9461 13,216.588275 12,021.909802 16,250.455842 21,196.54371 24,674.665067 18,563.169999 22,749.353807 25,838.572506 31,406.329347
C000047762 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   American Global Growth Trust (Series II/JAHWX)                    
Accumulated Value 10,000   10,010.1815 13,105.336727 11,865.729137 15,977.96191 20,740.00987 24,041.55791 18,011.922685 21,977.95101 24,867.515526 30,109.646735
C000047764 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   American Global Growth Trust (Series I/JAJQX)                    
Accumulated Value 10,000   10,028.2866 13,128.288618 11,897.865236 16,027.720626 20,829.020359 24,161.862534 18,109.819261 22,115.922623 25,034.167489 30,333.679945
C000063027 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Capital Appreciation Value Trust (Series I/JAFPX)                    
Accumulated Value 10,000   10,812.1514 12,449.847429 12,498.762008 15,537.037944 18,240.394296 21,546.762169 18,991.191851 22,444.421227 25,210.99645 28,137.488162
C000063028 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Capital Appreciation Value Trust (Series II/JAFQX)                    
Accumulated Value 10,000   10,784.3508 12,400.765484 12,413.919596 15,405.314339 18,053.060685 21,275.692328 18,708.328366 22,077.637316 24,759.516984 27,570.225027
C000063026 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Capital Appreciation Value Trust (Series NAV/JAFRX)                    
Accumulated Value 10,000   10,819.0946 12,456.757148 12,512.327364 15,569.951289 18,281.699017 21,601.609854 19,038.241428 22,524.962649 25,324.489345 28,267.080793
C000099622 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Lifestyle Balanced Portfolio (Series NAV/JAINX)                    
Accumulated Value 10,000   10,616.22 11,930.032642 11,406.812071 13,447.414553 15,152.43766 16,592.830505 14,044.766758 15,972.201307 17,356.967202 19,797.579828
C000099621 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Lifestyle Balanced Portfolio (Series II/JAILX)                    
Accumulated Value 10,000   10,588.7701 11,875.913145 11,326.624966 13,315.75995 14,975.793798 16,355.646067 13,804.085792 15,667.224218 16,978.780513 19,323.670481
C000099620 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Lifestyle Balanced Portfolio (Series I/JHBPX)                    
Accumulated Value 10,000   10,610.5354 11,917.015929 11,396.951634 13,418.005549 15,120.566626 16,548.356976 13,992.232061 15,915.104757 17,271.258207 19,707.298538
C000099623 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Lifestyle Conservative Portfolio (Series I/JHCIX)                    
Accumulated Value 10,000   10,438.6879 11,164.707203 10,944.625034 12,307.925287 13,630.57297 14,034.398595 11,982.986763 13,075.567815 13,654.520092 15,027.378859
C000099624 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Lifestyle Conservative Portfolio (Series II/JAIRX)                    
Accumulated Value 10,000   10,417.3131 11,119.38177 10,878.480809 12,208.257818 13,493.401341 13,855.396105 11,816.68458 12,868.221681 13,410.663422 14,727.457134
C000099625 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Lifestyle Conservative Portfolio (Series NAV/JAIQX)                    
Accumulated Value 10,000   10,436.1309 11,167.911773 10,953.188455 12,324.559085 13,656.146968 14,057.84854 12,017.077134 13,119.965538 13,708.160489 15,089.144703
C000099628 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Lifestyle Growth Portfolio (Series NAV/JAIJX)                    
Accumulated Value 10,000   10,721.1201 12,457.86608 11,701.684946 14,220.211917 16,158.950674 18,442.369893 15,494.174855 18,123.552907 20,184.986347 23,583.859899
C000099627 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Lifestyle Growth Portfolio (Series II/JAIKX)                    
Accumulated Value 10,000   10,701.8002 12,402.997207 11,620.373789 14,084.194349 15,967.401834 18,177.174005 15,225.381991 17,762.967784 19,746.383609 23,006.668527
C000099626 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Lifestyle Growth Portfolio (Series I/JHGPX)                    
Accumulated Value 10,000   10,723.1332 12,453.224421 11,691.528055 14,199.841345 16,127.964104 18,397.201393 15,438.390347 18,062.546802 20,106.020522 23,467.624104
C000099629 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Lifestyle Moderate Portfolio (Series I/JHMPX)                    
Accumulated Value 10,000   10,549.5408 11,649.533824 11,232.500317 13,026.172689 14,601.404696 15,659.3137 13,281.404791 14,894.703672 15,957.98235 17,980.215375
C000099630 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Lifestyle Moderate Portfolio (Series II/JAIPX)                    
Accumulated Value 10,000   10,527.9936 11,609.780422 11,171.824095 12,927.616458 14,461.893903 15,477.883455 13,103.946828 14,664.195775 15,677.848776 17,634.970609
C000099631 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Lifestyle Moderate Portfolio (Series NAV/JAIOX)                    
Accumulated Value 10,000   10,555.0334 11,669.833651 11,257.977681 13,053.133936 14,648.396724 15,707.885962 13,338.590282 14,966.612311 16,043.312197 18,079.247821
C000111804 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Strategic Equity Allocation Trust (Series NAV/JAFVX)                    
Accumulated Value 10,000   10,880.8693 13,249.830185 12,121.326116 15,412.154277 17,622.822364 21,349.212562 17,723.443982 21,597.597778 24,978.427205 30,149.45521
Standard & Poor's 500 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   S&P 500 Index                    
Accumulated Value 10,000   11,195.9929 13,640.252584 13,042.215624 17,148.743195 20,303.902557 26,132.222453 21,399.450923 27,024.858976 33,786.403022 39,827.409517
MSCI ACWI ex USA Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   MSCI ACWI ex USA Index                    
Accumulated Value 10,000   10,449.5105 13,290.907539 11,403.904625 13,857.414563 15,333.501928 16,533.201559 13,887.367356 16,056.010588 16,944.556797 22,432.395151
Russell 1000 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell 1000 Index                    
Accumulated Value 10,000   11,205.3826 13,635.506474 12,983.1683 17,063.275778 20,640.297715 26,100.686618 21,108.427342 26,708.334803 33,254.820889 39,029.78857
MSCI World Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   MSCI World Index                    
Accumulated Value 10,000   10,751.0497 13,159.320419 12,012.946615 15,336.937352 17,775.892741 21,654.101034 17,725.704105 21,942.141802 26,038.940447 31,531.613814
Russell 3000 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell 3000 Index                    
Accumulated Value 10,000   11,273.5114 13,655.671549 12,939.87047 16,953.694455 20,494.94655 25,754.174664 20,807.588879 26,208.579351 32,448.260002 38,011.654356
MSCI World ex USA Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   MSCI World ex USA Index                    
Accumulated Value 10,000   10,274.8373 12,762.051753 10,963.87981 13,429.744529 14,448.575445 16,272.611578 13,947.108767 16,449.225938 17,222.284123 22,708.345941
MSCI EAFE Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   MSCI EAFE Index                    
Accumulated Value 10,000   10,100.0212 12,628.492827 10,886.989948 13,283.709725 14,321.927283 15,935.065389 13,632.174835 16,118.402838 16,734.634846 21,959.386318
Wilshire 5000 Total Market Full Cap Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Wilshire 5000 Total Market Full Cap Index                    
Accumulated Value 10,000   11,303.572 13,677.182521 12,953.704974 16,871.251611 20,612.837501 25,665.680291 20,493.650204 25,872.842159 32,128.758526 37,639.02439
MSCI Emerging Markets Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   MSCI Emerging Markets Index                    
Accumulated Value 10,000   11,118.6922 15,264.089334 13,038.846888 15,442.612032 18,269.557747 17,805.177926 14,227.876599 15,626.209669 16,798.818413 22,437.521897
MSCI ACWI [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   MSCI ACWI                    
Accumulated Value 10,000   10,786.4495 13,372.189579 12,113.11422 15,335.092494 17,827.79215 21,132.591487 17,251.802386 21,082.023917 24,768.992882 30,301.743136
Bloomberg U S Aggregate Bond C000099623 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Bloomberg U.S. Aggregate Bond Index                    
Bloomberg U S Aggregate Bond C000099624 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Bloomberg U.S. Aggregate Bond Index                    
Bloomberg U S Aggregate Bond C000099625 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Bloomberg U.S. Aggregate Bond Index                    
Bloomberg U S Aggregate Bond C000099629 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Bloomberg U.S. Aggregate Bond Index                    
Bloomberg U S Aggregate Bond C000099630 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Bloomberg U.S. Aggregate Bond Index                    
Bloomberg U S Aggregate Bond C000099631 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Bloomberg U.S. Aggregate Bond Index                    
Russell 1000 Growth Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell 1000 Growth Index                    
Accumulated Value 10,000   10,707.6535 13,942.698067 13,731.641312 18,728.542193 25,937.719752 33,095.634515 23,452.599863 33,461.730217 44,623.302579 52,905.552198
Russell 1000 Value Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell 1000 Value Index                    
Accumulated Value 10,000   11,734.046 13,337.446006 12,234.800133 15,482.079178 15,914.904699 19,919.156949 18,417.680578 20,528.844602 23,478.490376 27,213.052073
Lipper Financial Services Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Lipper Financial Services Index                    
Accumulated Value 10,000   12,245.7539 14,097.857438 11,982.884882 15,466.553609 15,571.335488 21,161.462524 18,704.790037 21,405.202819 27,592.928306 31,923.781887
S And P 500 Financials Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   S&P 500 Financials Index                    
Accumulated Value 10,000   12,279.5662 15,003.645027 13,048.613516 17,240.521972 16,948.564594 22,886.923337 20,476.359052 22,963.609076 29,980.86479 34,484.955765
MSCI World Value Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   MSCI World Value Index                    
Accumulated Value 10,000   11,233.2284 13,153.97049 11,735.634677 14,287.867412 14,121.790099 17,220.768357 16,097.965133 17,951.339152 20,009.960131 24,170.571511
Lipper Health Biotechnology Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Lipper Health/Biotechnology Index                    
Accumulated Value 10,000   8,893.1229 11,114.525842 11,455.2094 14,616.110739 18,702.453016 19,307.761274 16,808.714676 17,689.926335 17,990.872846 21,951.999602
S And P MidCap 400 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   S&P MidCap 400 Index                    
Accumulated Value 10,000   12,073.8469 14,035.123919 12,479.551626 15,749.163328 17,900.363438 22,332.456192 19,415.710118 22,607.108833 25,755.97548 27,688.019544
Russell Midcap Growth Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell Midcap Growth Index                    
Accumulated Value 10,000   10,732.8557 13,444.831961 12,806.118816 17,348.410357 23,522.099806 26,516.044183 19,430.70607 24,456.815137 29,862.528465 32,447.72188
Russell Midcap Value Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell Midcap Value Index                    
Accumulated Value 10,000   11,999.7442 13,601.023305 11,929.501472 15,157.875448 15,910.406212 20,419.072622 17,962.218767 20,245.956456 22,892.106812 25,421.451802
MSCI World ex USA Small Cap Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   MSCI World ex USA Small Cap Index                    
Accumulated Value 10,000   10,431.4077 13,668.975752 11,198.664052 14,044.317939 15,839.346792 17,603.862379 13,979.781637 15,744.669794 16,179.784765 21,692.407646
Russell 2000 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell 2000 Index                    
Accumulated Value 10,000   12,130.79916 13,907.62622 12,375.84714 15,534.77059 18,635.6378 21,397.25291 17,024.41155 19,906.45923 22,203.24092 25,046.78904
Russell 2000 Value Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell 2000 Value Index                    
Accumulated Value 10,000   13,174.084 14,206.651578 12,379.112891 15,151.288708 15,853.443365 20,335.276011 17,390.049253 19,937.085425 21,542.947677 24,256.186071
Dow Jones U S Select REIT Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Dow Jones U.S. Select REIT Index                    
Accumulated Value 10,000   10,667.6626 11,069.134855 10,602.130159 13,051.596163 11,590.097088 16,911.471229 12,521.033111 14,268.942288 15,425.119723 15,991.777692
S And P North American Technology Sector Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   S&P North American Technology Sector Index                    
Accumulated Value 10,000   11,355.622 15,645.977213 16,096.43804 22,966.968092 33,337.26708 42,138.54295 27,238.518925 43,888.73995 59,722.222596 76,337.422103
Russell 2000 Growth Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell 2000 Growth Index                    
Accumulated Value 10,000   11,131.8094 13,599.367311 12,333.540786 15,846.558586 21,334.58788 21,939.383337 16,156.712568 19,171.30535 22,076.569248 24,949.339779
Forty Bloomberg U S Aggregate Bond Index 60 S And P 500 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   40% Bloomberg U.S. Aggregate Bond Index/ 60% S&P 500 Index                    
Accumulated Value 10,000   10,830.5609 12,369.597575 12,079.306127 14,758.378211 16,932.156267 19,617.028685 16,520.230982 19,439.152598 22,363.500958 25,427.601378
Bloomberg U S Aggregate Bond Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Bloomberg U.S. Aggregate Bond Index                    
Accumulated Value 10,000   10,264.7242 10,628.285026 10,629.479539 11,556.037877 12,423.507461 12,231.930516 10,640.540944 11,228.839002 11,369.226102 12,199.284318
Fifty Bloomberg U S Aggregate Bond Index 15 MSCI EAFE Index 35 Russell 3000 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   50% Bloomberg U.S. Aggregate Bond Index/ 15% MSCI EAFE Index/ 35% Russell 3000 Index                    
Accumulated Value 10,000   10,605.0208 11,940.334602 11,497.565264 13,614.157457 15,385.554297 16,835.837571 14,292.759557 16,346.589943 17,849.69436 20,392.610905
Morningstar U S Moderate Target Allocation Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Morningstar U.S. Moderate Target Allocation Index                    
Accumulated Value 10,000   10,759.6718 12,296.362209 11,846.23186 14,254.986837 16,288.003267 18,302.764445 15,498.667272 18,094.603838 20,438.865257 23,423.893671
Morningstar U S Conservative Target Allocation Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Morningstar U.S. Conservative Target Allocation Index                    
Accumulated Value 10,000   10,440.9834 11,176.544416 11,086.063471 12,463.801747 13,618.184108 14,109.51253 12,271.967926 13,508.199096 14,393.541594 15,777.42362
Eighty Bloomberg U S Aggregate Bond Index 6 MSCI EAFE Index 14 Russell 3000 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   80% Bloomberg U.S. Aggregate Bond Index/ 6% MSCI EAFE Index/ 14% Russell 3000 Index                    
Accumulated Value 10,000   10,404.0627 11,140.900581 10,981.64085 12,361.571217 13,583.6605 13,956.718892 12,032.990915 13,117.607654 13,691.681257 15,068.91967
Thirty Bloomberg U S Aggregate Bond Index 21 MSCI EAFE Index 49 Russell 3000 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   30% Bloomberg U.S. Aggregate Bond Index/ 21% MSCI EAFE Index/ 49% Russell 3000 Index                    
Accumulated Value 10,000   10,733.2947 12,493.598608 11,831.078316 14,474.533649 16,613.02137 18,946.641683 15,898.234843 18,764.110433 21,108.792424 24,712.014107
Morningstar U S Moderately Aggressive Target Allocation Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Morningstar U.S. Moderately Aggressive Target Allocation Index                    
Accumulated Value 10,000   10,855.8596 12,813.020732 12,105.029584 14,970.614138 17,333.062831 20,046.217209 16,777.004332 20,041.789746 23,078.835382 27,167.867044
Morningstar U S Moderately Conservative Target Allocation Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Morningstar U.S. Moderately Conservative Target Allocation Index                    
Accumulated Value 10,000   10,576.7153 11,688.038382 11,406.860762 13,219.626413 14,741.228019 15,801.1288 13,580.059879 15,350.29877 16,748.621496 18,817.055817
Sixty Bloomberg U S Aggregate Bond Index 12 MSCI EAFE Index 28 Russell 3000 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   60% Bloomberg U.S. Aggregate Bond Index/ 12% MSCI EAFE Index/ 28% Russell 3000 Index                    
Accumulated Value 10,000   10,539.1459 11,669.789582 11,327.484079 13,191.178157 14,778.310109 15,837.378639 13,518.220537 15,217.082078 16,369.241774 18,471.70244
Thirty MSCI EAFE Index 70 Russell 3000 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   30%% MSCI EAFE Index/ 70% Russell 3000 Index                    
Accumulated Value $ 10,000   $ 10,916.5868 $ 13,353.761089 $ 12,311.734395 $ 15,794.524605 $ 18,463.329534 $ 22,383.69796 $ 18,418.96979 $ 22,773.288661 $ 26,776.840551 $ 32,493.698954