Shareholder Report, Line Graph (Details) - USD ($) |
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| C000104752 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Class A with Maximum Sales Charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 9,526 | $ 9,395 | $ 9,417 | $ 9,578 | $ 9,760 | $ 9,935 | $ 10,008 | $ 10,081 | $ 10,147 | $ 10,198 | $ 10,438 | $ 10,445 | $ 10,584 | $ 10,773 | $ 10,861 | $ 10,986 | $ 11,492 | $ 11,113 | $ 10,927 | $ 10,860 | $ 11,016 | $ 10,904 | $ 11,157 | $ 11,247 | $ 11,276 | $ 10,569 | $ 10,703 | $ 10,148 | $ 10,500 | $ 10,675 | $ 10,782 | $ 10,912 | $ 10,629 | $ 10,950 | $ 10,958 | $ 10,973 | $ 11,004 | $ 11,110 | $ 11,240 | $ 11,417 | $ 11,473 | $ 11,226 | $ 10,692 | $ 11,154 | $ 11,346 | $ 11,465 | $ 11,792 | $ 12,063 | $ 11,895 | $ 11,712 | $ 12,302 | $ 12,509 | $ 12,402 | $ 12,558 | $ 12,755 | $ 13,018 | $ 13,182 | $ 13,198 | $ 13,157 | $ 13,296 | $ 12,952 | $ 13,255 | $ 13,059 | $ 13,376 | $ 13,030 | $ 12,805 | $ 12,805 | $ 12,191 | $ 12,242 | $ 11,715 | $ 12,104 | $ 11,663 | $ 10,901 | $ 10,945 | $ 11,620 | $ 11,381 | $ 11,852 | $ 11,486 | $ 11,887 | $ 12,009 | $ 11,791 | $ 11,939 | $ 12,000 | $ 11,774 | $ 11,294 | $ 11,032 | $ 11,669 | $ 12,118 | $ 12,056 | $ 12,198 | $ 12,421 | $ 12,118 | $ 12,475 | $ 12,627 | $ 12,930 | $ 13,109 | $ 13,287 | $ 13,010 | $ 13,323 | $ 13,019 | $ 13,201 | $ 13,237 | $ 12,982 | $ 13,091 | $ 13,356 | $ 13,702 | $ 13,693 | $ 13,902 | $ 14,248 | $ 14,494 | $ 14,540 | $ 14,657 | $ 15,021 | $ 15,189 | $ 14,395 | $ 15,311 | $ 15,731 | $ 15,787 | $ 15,581 | $ 15,857 | |
| C000104753 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Class C | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,047 | 9,899 | 9,922 | 10,078 | 10,265 | 10,444 | 10,507 | 10,577 | 10,647 | 10,694 | 10,935 | 10,935 | 11,083 | 11,263 | 11,348 | 11,477 | 11,991 | 11,588 | 11,390 | 11,319 | 11,469 | 11,343 | 11,604 | 11,690 | 11,714 | 10,971 | 11,106 | 10,522 | 10,885 | 11,054 | 11,159 | 11,288 | 10,982 | 11,313 | 11,313 | 11,321 | 11,345 | 11,450 | 11,571 | 11,745 | 11,795 | 11,536 | 10,985 | 11,444 | 11,637 | 11,754 | 12,088 | 12,356 | 12,172 | 11,979 | 12,573 | 12,774 | 12,663 | 12,809 | 13,005 | 13,262 | 13,424 | 13,432 | 13,373 | 13,509 | 13,159 | 13,450 | 13,244 | 13,554 | 13,205 | 12,963 | 12,954 | 12,327 | 12,372 | 11,835 | 12,220 | 11,763 | 10,993 | 11,020 | 11,692 | 11,443 | 11,918 | 11,550 | 11,935 | 12,052 | 11,828 | 11,971 | 12,025 | 11,792 | 11,300 | 11,031 | 11,658 | 12,103 | 12,031 | 12,167 | 12,385 | 12,067 | 12,421 | 12,567 | 12,857 | 13,030 | 13,194 | 12,912 | 13,212 | 12,905 | 13,070 | 13,107 | 12,850 | 12,951 | 13,199 | 13,530 | 13,512 | 13,705 | 14,045 | 14,275 | 14,312 | 14,419 | 14,774 | 14,924 | 14,139 | 15,027 | 15,428 | 15,475 | 15,260 | 15,758 | |
| C000104754 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Class I | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 1,000,000 | 1,005,331 | 991,622 | 993,907 | 1,011,146 | 1,030,325 | 1,049,505 | 1,057,177 | 1,064,849 | 1,072,521 | 1,077,891 | 1,103,208 | 1,103,975 | 1,120,086 | 1,139,265 | 1,149,239 | 1,162,905 | 1,216,300 | 1,176,254 | 1,156,623 | 1,150,341 | 1,166,831 | 1,155,053 | 1,182,535 | 1,192,743 | 1,195,884 | 1,121,288 | 1,135,422 | 1,076,602 | 1,114,561 | 1,133,137 | 1,145,252 | 1,158,175 | 1,128,291 | 1,163,021 | 1,164,636 | 1,166,251 | 1,170,289 | 1,181,597 | 1,195,327 | 1,214,669 | 1,220,581 | 1,194,396 | 1,138,646 | 1,186,794 | 1,207,911 | 1,220,581 | 1,256,059 | 1,285,623 | 1,267,884 | 1,248,456 | 1,310,964 | 1,333,971 | 1,322,644 | 1,340,071 | 1,360,982 | 1,388,864 | 1,407,161 | 1,409,775 | 1,404,547 | 1,420,231 | 1,383,636 | 1,415,874 | 1,394,963 | 1,429,455 | 1,393,534 | 1,369,587 | 1,369,587 | 1,304,194 | 1,309,720 | 1,254,457 | 1,295,904 | 1,248,931 | 1,167,880 | 1,172,485 | 1,244,326 | 1,218,947 | 1,270,164 | 1,231,984 | 1,274,820 | 1,287,857 | 1,265,508 | 1,281,338 | 1,287,857 | 1,263,645 | 1,212,429 | 1,185,424 | 1,253,402 | 1,301,898 | 1,296,167 | 1,311,449 | 1,335,329 | 1,302,853 | 1,341,060 | 1,358,253 | 1,391,684 | 1,410,787 | 1,429,891 | 1,401,236 | 1,433,711 | 1,401,904 | 1,421,456 | 1,426,344 | 1,398,971 | 1,411,680 | 1,440,031 | 1,477,180 | 1,477,180 | 1,499,665 | 1,537,793 | 1,564,188 | 1,570,054 | 1,582,680 | 1,621,870 | 1,640,962 | 1,554,543 | 1,654,026 | 1,700,250 | 1,706,279 | 1,685,177 | 1,714,318 | |
| C000092730 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Class A with Maximum Sales Charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 9,533 | 9,385 | 9,673 | 9,875 | 10,099 | 10,350 | 10,443 | 10,555 | 10,648 | 10,727 | 11,064 | 11,051 | 11,296 | 11,593 | 11,765 | 11,919 | 12,679 | 12,149 | 11,891 | 11,772 | 12,037 | 11,870 | 12,211 | 12,267 | 12,288 | 11,228 | 11,493 | 10,495 | 11,207 | 11,544 | 11,786 | 12,080 | 11,427 | 12,080 | 12,102 | 12,109 | 12,212 | 12,462 | 12,755 | 13,155 | 13,139 | 12,274 | 11,089 | 12,018 | 12,547 | 12,771 | 13,500 | 14,276 | 13,788 | 13,451 | 14,741 | 15,287 | 15,131 | 15,721 | 16,296 | 16,928 | 17,297 | 17,297 | 17,174 | 17,518 | 16,805 | 17,576 | 17,149 | 17,919 | 17,382 | 16,955 | 17,187 | 15,973 | 16,084 | 14,981 | 15,769 | 15,157 | 13,729 | 14,499 | 15,750 | 15,240 | 15,995 | 15,475 | 16,151 | 16,475 | 16,053 | 16,749 | 17,287 | 16,739 | 15,936 | 15,564 | 16,710 | 17,426 | 17,278 | 18,022 | 18,596 | 18,139 | 18,936 | 19,245 | 19,744 | 20,031 | 20,287 | 19,925 | 20,712 | 19,985 | 20,471 | 20,195 | 19,433 | 19,544 | 20,593 | 21,365 | 21,531 | 21,940 | 22,713 | 23,265 | 23,298 | 23,597 | 24,351 | 24,598 | 22,921 | 25,144 | 26,132 | 26,236 | 25,820 | 26,484 | |
| C000092731 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Class C | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,055 | 9,890 | 10,192 | 10,394 | 10,626 | 10,886 | 10,977 | 11,089 | 11,180 | 11,251 | 11,601 | 11,580 | 11,826 | 12,128 | 12,296 | 12,455 | 13,241 | 12,675 | 12,403 | 12,271 | 12,536 | 12,352 | 12,705 | 12,756 | 12,764 | 11,653 | 11,925 | 10,884 | 11,609 | 11,955 | 12,202 | 12,495 | 11,809 | 12,480 | 12,495 | 12,495 | 12,595 | 12,850 | 13,135 | 13,546 | 13,520 | 12,619 | 11,391 | 12,335 | 12,877 | 13,095 | 13,838 | 14,614 | 14,113 | 13,763 | 15,065 | 15,614 | 15,452 | 16,040 | 16,611 | 17,250 | 17,608 | 17,600 | 17,472 | 17,813 | 17,071 | 17,847 | 17,395 | 18,167 | 17,613 | 17,172 | 17,393 | 16,158 | 16,254 | 15,135 | 15,919 | 15,288 | 13,843 | 14,609 | 15,862 | 15,335 | 16,090 | 15,556 | 16,220 | 16,542 | 16,110 | 16,784 | 17,317 | 16,754 | 15,949 | 15,566 | 16,703 | 17,400 | 17,248 | 17,975 | 18,539 | 18,073 | 18,854 | 19,158 | 19,635 | 19,906 | 20,145 | 19,776 | 20,546 | 19,815 | 20,285 | 19,994 | 19,232 | 19,322 | 20,353 | 21,103 | 21,249 | 21,641 | 22,391 | 22,929 | 22,940 | 23,221 | 23,944 | 24,167 | 22,512 | 24,679 | 25,625 | 25,717 | 25,297 | 26,317 | |
| C000092732 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Class I | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 1,000,000 | 1,006,065 | 990,566 | 1,021,563 | 1,043,527 | 1,066,561 | 1,093,784 | 1,103,556 | 1,116,120 | 1,126,590 | 1,134,269 | 1,170,565 | 1,169,867 | 1,195,694 | 1,227,104 | 1,245,252 | 1,261,858 | 1,343,078 | 1,286,962 | 1,259,643 | 1,247,829 | 1,275,887 | 1,258,166 | 1,295,084 | 1,301,730 | 1,303,206 | 1,190,975 | 1,219,772 | 1,114,141 | 1,189,715 | 1,226,334 | 1,252,045 | 1,283,210 | 1,213,868 | 1,283,989 | 1,286,326 | 1,287,884 | 1,298,792 | 1,326,061 | 1,357,226 | 1,400,109 | 1,399,257 | 1,307,223 | 1,180,250 | 1,279,953 | 1,337,049 | 1,360,909 | 1,438,456 | 1,521,116 | 1,469,986 | 1,435,048 | 1,572,246 | 1,630,816 | 1,615,068 | 1,678,061 | 1,739,304 | 1,807,546 | 1,846,917 | 1,847,792 | 1,834,668 | 1,872,289 | 1,796,172 | 1,879,288 | 1,832,918 | 1,916,047 | 1,859,576 | 1,814,003 | 1,839,761 | 1,709,978 | 1,721,866 | 1,603,971 | 1,689,172 | 1,623,785 | 1,471,215 | 1,554,435 | 1,688,182 | 1,633,368 | 1,715,246 | 1,659,611 | 1,732,041 | 1,767,732 | 1,723,644 | 1,797,124 | 1,855,909 | 1,797,124 | 1,712,097 | 1,672,207 | 1,796,075 | 1,872,026 | 1,857,178 | 1,937,130 | 1,999,950 | 1,950,836 | 2,037,641 | 2,071,907 | 2,125,589 | 2,156,428 | 2,183,840 | 2,145,006 | 2,230,669 | 2,153,543 | 2,207,055 | 2,176,137 | 2,095,275 | 2,107,166 | 2,221,324 | 2,304,564 | 2,323,591 | 2,367,589 | 2,450,829 | 2,512,665 | 2,516,232 | 2,548,882 | 2,631,693 | 2,656,957 | 2,477,300 | 2,717,311 | 2,825,385 | 2,838,018 | 2,793,103 | 2,864,685 | |
| C000014185 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Class A with Maximum Sales Charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 9,768 | 9,498 | 9,336 | 8,897 | 9,394 | 9,676 | 10,013 | 10,347 | 10,774 | 11,032 | 11,595 | 11,956 | 11,980 | 12,468 | 12,848 | 13,290 | 14,359 | 13,709 | 13,583 | 13,348 | 13,746 | 13,447 | 13,264 | 12,876 | 12,787 | 11,492 | 12,147 | 11,965 | 12,811 | 13,340 | 13,915 | 14,001 | 13,012 | 13,794 | 13,599 | 13,346 | 13,317 | 13,984 | 13,875 | 14,746 | 14,092 | 14,145 | 12,844 | 13,801 | 13,670 | 14,555 | 15,530 | 16,207 | 15,761 | 16,148 | 17,205 | 18,452 | 19,355 | 19,440 | 19,113 | 19,388 | 19,807 | 19,074 | 17,706 | 17,582 | 16,986 | 17,176 | 16,672 | 16,673 | 16,246 | 15,427 | 13,541 | 13,052 | 13,334 | 14,071 | 13,045 | 12,997 | 11,317 | 9,273 | 12,412 | 12,889 | 14,371 | 13,101 | 13,079 | 12,422 | 11,043 | 11,400 | 12,458 | 11,532 | 10,991 | 10,714 | 11,094 | 10,656 | 9,183 | 9,705 | 9,801 | 10,387 | 10,775 | 10,609 | 10,125 | 10,054 | 11,987 | 11,559 | 11,132 | 11,646 | 11,832 | 12,812 | 13,339 | 12,691 | 13,088 | 13,549 | 13,946 | 14,699 | 15,825 | 15,274 | 14,959 | 14,681 | 15,117 | 14,385 | 13,488 | 14,237 | 13,710 | 13,266 | 14,031 | 13,932 | |
| C000014187 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Class C | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,304 | 10,010 | 9,830 | 9,364 | 9,884 | 10,175 | 10,523 | 10,865 | 11,307 | 11,572 | 12,154 | 12,527 | 12,543 | 13,047 | 13,436 | 13,889 | 14,997 | 14,312 | 14,173 | 13,923 | 14,330 | 14,005 | 13,807 | 13,396 | 13,297 | 11,939 | 12,612 | 12,422 | 13,287 | 13,827 | 14,418 | 14,501 | 13,471 | 14,266 | 14,056 | 13,789 | 13,751 | 14,431 | 14,310 | 15,198 | 14,516 | 14,569 | 13,217 | 14,195 | 14,050 | 14,949 | 15,939 | 16,628 | 16,162 | 16,543 | 17,625 | 18,885 | 19,805 | 19,877 | 19,532 | 19,798 | 20,215 | 19,453 | 18,052 | 17,915 | 17,297 | 17,477 | 16,952 | 16,946 | 16,505 | 15,663 | 13,734 | 13,233 | 13,514 | 14,251 | 13,203 | 13,150 | 11,441 | 9,369 | 12,535 | 13,007 | 14,489 | 13,202 | 13,169 | 12,505 | 11,105 | 11,461 | 12,514 | 11,575 | 11,032 | 10,741 | 11,113 | 10,662 | 9,193 | 9,706 | 9,795 | 10,379 | 10,750 | 10,582 | 10,096 | 10,016 | 11,936 | 11,503 | 11,069 | 11,572 | 11,752 | 12,721 | 13,232 | 12,577 | 12,963 | 13,412 | 13,797 | 14,533 | 15,645 | 15,080 | 14,766 | 14,481 | 14,899 | 14,164 | 13,275 | 14,010 | 13,483 | 13,039 | 13,774 | 13,674 | |
| C000014184 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Class I | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 1,000,000 | 1,030,717 | 1,002,438 | 985,373 | 939,247 | 992,440 | 1,022,484 | 1,058,438 | 1,093,407 | 1,139,212 | 1,166,794 | 1,226,882 | 1,264,806 | 1,268,254 | 1,319,969 | 1,360,356 | 1,407,534 | 1,521,107 | 1,452,743 | 1,440,063 | 1,415,253 | 1,457,705 | 1,426,279 | 1,407,534 | 1,366,736 | 1,357,364 | 1,220,084 | 1,290,102 | 1,271,429 | 1,361,206 | 1,417,619 | 1,479,492 | 1,488,591 | 1,384,256 | 1,467,360 | 1,446,736 | 1,420,652 | 1,417,619 | 1,489,198 | 1,477,672 | 1,570,873 | 1,501,783 | 1,508,064 | 1,369,254 | 1,471,634 | 1,458,444 | 1,553,287 | 1,657,551 | 1,730,410 | 1,683,303 | 1,724,757 | 1,838,443 | 1,972,259 | 2,069,278 | 2,078,980 | 2,044,330 | 2,074,129 | 2,119,173 | 2,041,558 | 1,896,030 | 1,882,863 | 1,819,107 | 1,839,897 | 1,786,537 | 1,786,615 | 1,741,439 | 1,654,003 | 1,452,171 | 1,399,709 | 1,430,312 | 1,509,733 | 1,399,709 | 1,395,337 | 1,215,364 | 996,045 | 1,333,403 | 1,385,367 | 1,544,356 | 1,408,521 | 1,406,205 | 1,335,972 | 1,187,788 | 1,226,378 | 1,340,603 | 1,241,813 | 1,183,929 | 1,154,601 | 1,195,506 | 1,147,615 | 989,786 | 1,046,034 | 1,056,948 | 1,119,911 | 1,161,887 | 1,144,257 | 1,093,047 | 1,085,491 | 1,293,690 | 1,248,357 | 1,202,183 | 1,258,133 | 1,278,772 | 1,384,548 | 1,441,306 | 1,371,649 | 1,414,647 | 1,465,385 | 1,508,383 | 1,590,940 | 1,713,056 | 1,652,858 | 1,620,179 | 1,590,020 | 1,637,274 | 1,557,642 | 1,461,383 | 1,543,641 | 1,485,886 | 1,438,631 | 1,521,764 | 1,511,263 | |
| C000014191 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Class A with Maximum Sales Charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 9,475 | 8,624 | 8,607 | 8,745 | 8,975 | 9,493 | 9,551 | 9,781 | 9,724 | 10,069 | 10,137 | 10,281 | 10,329 | 9,983 | 10,233 | 10,165 | 10,717 | 10,204 | 10,046 | 10,175 | 10,332 | 10,530 | 11,201 | 11,546 | 11,763 | 11,023 | 11,684 | 10,772 | 11,488 | 11,748 | 11,976 | 11,613 | 11,385 | 12,205 | 12,049 | 12,049 | 11,966 | 12,485 | 13,056 | 13,572 | 13,353 | 12,487 | 12,071 | 13,419 | 13,923 | 13,781 | 14,285 | 14,669 | 14,439 | 13,781 | 14,789 | 15,341 | 15,282 | 15,070 | 15,400 | 16,037 | 16,367 | 16,814 | 17,392 | 17,981 | 16,932 | 18,063 | 17,274 | 18,725 | 17,060 | 17,124 | 18,059 | 17,124 | 17,009 | 16,714 | 17,278 | 15,946 | 15,241 | 16,368 | 17,239 | 16,959 | 16,866 | 16,238 | 16,893 | 17,494 | 16,959 | 17,467 | 17,681 | 17,574 | 16,906 | 16,171 | 17,173 | 17,920 | 18,386 | 18,990 | 19,346 | 18,565 | 19,223 | 19,730 | 20,361 | 21,471 | 20,868 | 19,894 | 19,771 | 18,552 | 19,770 | 20,000 | 19,197 | 18,853 | 18,179 | 18,365 | 17,634 | 18,494 | 18,437 | 19,082 | 20,544 | 20,460 | 20,522 | 20,830 | 19,243 | 19,074 | 19,212 | 20,337 | 20,460 | 21,164 | |
| C000014193 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Class C | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 9,991 | 9,093 | 9,075 | 9,199 | 9,447 | 9,973 | 10,033 | 10,271 | 10,212 | 10,559 | 10,628 | 10,767 | 10,817 | 10,450 | 10,698 | 10,618 | 11,189 | 10,648 | 10,485 | 10,597 | 10,771 | 10,965 | 11,648 | 12,005 | 12,219 | 11,444 | 12,127 | 11,175 | 11,909 | 12,164 | 12,398 | 12,015 | 11,771 | 12,611 | 12,440 | 12,430 | 12,324 | 12,855 | 13,429 | 13,958 | 13,725 | 12,825 | 12,380 | 13,769 | 14,281 | 14,114 | 14,625 | 15,003 | 14,758 | 14,081 | 15,103 | 15,655 | 15,584 | 15,359 | 15,690 | 16,329 | 16,660 | 17,097 | 17,677 | 18,256 | 17,180 | 18,315 | 17,511 | 18,972 | 17,265 | 17,329 | 18,259 | 17,304 | 17,176 | 16,871 | 17,418 | 16,081 | 15,356 | 16,476 | 17,342 | 17,041 | 16,949 | 16,313 | 16,949 | 17,545 | 17,002 | 17,492 | 17,704 | 17,585 | 16,896 | 16,167 | 17,147 | 17,878 | 18,326 | 18,923 | 19,276 | 18,475 | 19,127 | 19,615 | 20,240 | 21,312 | 20,715 | 19,724 | 19,602 | 18,363 | 19,567 | 19,794 | 18,972 | 18,632 | 17,952 | 18,122 | 17,385 | 18,235 | 18,150 | 18,774 | 20,205 | 20,100 | 20,161 | 20,448 | 18,875 | 18,694 | 18,830 | 19,919 | 20,025 | 20,705 | |
| C000081646 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Class I | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 1,000,000 | 1,000,882 | 910,935 | 910,053 | 923,384 | 949,199 | 1,002,815 | 1,009,765 | 1,034,587 | 1,028,630 | 1,065,367 | 1,072,317 | 1,088,203 | 1,094,160 | 1,057,424 | 1,083,239 | 1,076,222 | 1,135,389 | 1,081,322 | 1,065,001 | 1,078,262 | 1,096,624 | 1,117,026 | 1,188,435 | 1,225,159 | 1,248,621 | 1,170,072 | 1,240,460 | 1,143,967 | 1,220,232 | 1,248,159 | 1,272,865 | 1,234,195 | 1,210,564 | 1,297,570 | 1,281,458 | 1,281,458 | 1,272,865 | 1,328,720 | 1,388,873 | 1,444,651 | 1,421,936 | 1,329,942 | 1,285,649 | 1,429,886 | 1,484,402 | 1,468,501 | 1,523,016 | 1,563,903 | 1,540,052 | 1,469,637 | 1,577,532 | 1,637,445 | 1,631,340 | 1,609,361 | 1,644,772 | 1,713,151 | 1,748,562 | 1,796,184 | 1,858,458 | 1,921,953 | 1,809,615 | 1,931,722 | 1,848,689 | 2,003,808 | 1,825,986 | 1,832,621 | 1,933,475 | 1,832,621 | 1,822,005 | 1,791,484 | 1,851,200 | 1,709,208 | 1,634,895 | 1,754,327 | 1,848,546 | 1,818,650 | 1,810,333 | 1,742,410 | 1,813,105 | 1,878,255 | 1,820,036 | 1,875,482 | 1,899,047 | 1,887,958 | 1,817,263 | 1,738,252 | 1,844,987 | 1,927,315 | 1,977,172 | 2,042,698 | 2,081,159 | 1,997,114 | 2,069,763 | 2,123,893 | 2,193,692 | 2,311,924 | 2,249,247 | 2,143,835 | 2,131,015 | 1,999,397 | 2,130,602 | 2,157,440 | 2,070,963 | 2,035,180 | 1,962,122 | 1,981,505 | 1,903,974 | 1,997,906 | 1,990,451 | 2,060,527 | 2,218,570 | 2,210,607 | 2,218,616 | 2,252,256 | 2,080,854 | 2,061,631 | 2,079,252 | 2,200,995 | 2,213,810 | 2,290,701 | |
| C000014194 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Class R | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,000 | 9,102 | 9,086 | 9,222 | 9,468 | 10,009 | 10,066 | 10,313 | 10,256 | 10,607 | 10,683 | 10,825 | 10,882 | 10,512 | 10,768 | 10,691 | 11,276 | 10,740 | 10,574 | 10,691 | 10,867 | 11,071 | 11,772 | 12,132 | 12,356 | 11,577 | 12,269 | 11,313 | 12,066 | 12,321 | 12,565 | 12,189 | 11,934 | 12,800 | 12,627 | 12,627 | 12,535 | 13,075 | 13,675 | 14,214 | 13,979 | 13,081 | 12,632 | 14,043 | 14,567 | 14,417 | 14,941 | 15,336 | 15,090 | 14,396 | 15,443 | 16,023 | 15,966 | 15,738 | 16,069 | 16,741 | 17,083 | 17,539 | 18,143 | 18,747 | 17,653 | 18,826 | 18,006 | 19,521 | 17,765 | 17,839 | 18,809 | 17,826 | 17,704 | 17,397 | 17,974 | 16,599 | 15,862 | 17,016 | 17,912 | 17,623 | 17,534 | 16,871 | 17,547 | 18,171 | 17,610 | 18,120 | 18,350 | 18,235 | 17,534 | 16,782 | 17,802 | 18,581 | 19,050 | 19,675 | 20,053 | 19,232 | 19,910 | 20,431 | 21,083 | 22,216 | 21,604 | 20,574 | 20,457 | 19,177 | 20,437 | 20,681 | 19,841 | 19,488 | 18,784 | 18,974 | 18,215 | 19,095 | 19,028 | 19,692 | 21,196 | 21,100 | 21,172 | 21,490 | 19,830 | 19,657 | 19,801 | 20,956 | 21,071 | 21,793 | |
| EATON VANCE Index: MSCI World | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI World Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,053 | 9,859 | 10,000 | 10,240 | 10,487 | 10,778 | 10,892 | 11,054 | 11,288 | 11,331 | 11,602 | 11,619 | 11,879 | 12,104 | 12,366 | 12,533 | 13,195 | 12,648 | 12,373 | 12,515 | 12,593 | 12,587 | 12,980 | 13,141 | 13,214 | 12,244 | 12,383 | 11,441 | 12,332 | 12,703 | 12,869 | 13,326 | 12,557 | 13,384 | 13,451 | 13,175 | 13,456 | 13,798 | 14,182 | 14,607 | 14,518 | 13,291 | 11,532 | 12,792 | 13,410 | 13,765 | 14,423 | 15,387 | 14,856 | 14,400 | 16,242 | 16,930 | 16,762 | 17,192 | 17,764 | 18,590 | 18,858 | 19,139 | 19,482 | 19,967 | 19,138 | 20,222 | 19,779 | 20,624 | 19,533 | 19,039 | 19,561 | 17,936 | 17,950 | 16,395 | 17,697 | 16,957 | 15,380 | 16,485 | 17,631 | 16,882 | 18,077 | 17,642 | 18,188 | 18,506 | 18,322 | 19,430 | 20,082 | 19,603 | 18,757 | 18,213 | 19,920 | 20,898 | 21,149 | 22,046 | 22,754 | 21,909 | 22,887 | 23,353 | 23,765 | 24,393 | 24,839 | 24,347 | 25,464 | 24,800 | 25,675 | 25,491 | 24,356 | 24,572 | 26,027 | 27,150 | 27,499 | 28,217 | 29,124 | 29,707 | 29,791 | 30,032 | 30,704 | 30,929 | 28,959 | 31,736 | 33,181 | 32,943 | 33,112 | 33,965 | |
| EATON VANCE Index: MSCI World | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI World Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,053 | 9,859 | 10,000 | 10,240 | 10,487 | 10,778 | 10,892 | 11,054 | 11,288 | 11,331 | 11,602 | 11,619 | 11,879 | 12,104 | 12,366 | 12,533 | 13,195 | 12,648 | 12,373 | 12,515 | 12,593 | 12,587 | 12,980 | 13,141 | 13,214 | 12,244 | 12,383 | 11,441 | 12,332 | 12,703 | 12,869 | 13,326 | 12,557 | 13,384 | 13,451 | 13,175 | 13,456 | 13,798 | 14,182 | 14,607 | 14,518 | 13,291 | 11,532 | 12,792 | 13,410 | 13,765 | 14,423 | 15,387 | 14,856 | 14,400 | 16,242 | 16,930 | 16,762 | 17,192 | 17,764 | 18,590 | 18,858 | 19,139 | 19,482 | 19,967 | 19,138 | 20,222 | 19,779 | 20,624 | 19,533 | 19,039 | 19,561 | 17,936 | 17,950 | 16,395 | 17,697 | 16,957 | 15,380 | 16,485 | 17,631 | 16,882 | 18,077 | 17,642 | 18,188 | 18,506 | 18,322 | 19,430 | 20,082 | 19,603 | 18,757 | 18,213 | 19,920 | 20,898 | 21,149 | 22,046 | 22,754 | 21,909 | 22,887 | 23,353 | 23,765 | 24,393 | 24,839 | 24,347 | 25,464 | 24,800 | 25,675 | 25,491 | 24,356 | 24,572 | 26,027 | 27,150 | 27,499 | 28,217 | 29,124 | 29,707 | 29,791 | 30,032 | 30,704 | 30,929 | 28,959 | 31,736 | 33,181 | 32,943 | 33,112 | 33,965 | |
| EATON VANCE Index: MSCI World | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI World Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 1,000,000 | 1,005,312 | 985,856 | 1,000,032 | 1,023,961 | 1,048,674 | 1,077,768 | 1,089,249 | 1,105,377 | 1,128,761 | 1,133,104 | 1,160,221 | 1,161,855 | 1,187,932 | 1,210,382 | 1,236,608 | 1,253,332 | 1,319,508 | 1,264,844 | 1,237,275 | 1,251,493 | 1,259,335 | 1,258,734 | 1,298,049 | 1,314,109 | 1,321,427 | 1,224,397 | 1,238,306 | 1,144,148 | 1,233,169 | 1,270,250 | 1,286,934 | 1,332,568 | 1,255,678 | 1,338,421 | 1,345,050 | 1,317,538 | 1,345,576 | 1,379,818 | 1,418,246 | 1,460,734 | 1,451,843 | 1,329,126 | 1,153,226 | 1,279,209 | 1,341,005 | 1,376,476 | 1,442,329 | 1,538,697 | 1,485,613 | 1,440,042 | 1,624,168 | 1,693,027 | 1,676,201 | 1,719,152 | 1,776,352 | 1,859,024 | 1,885,804 | 1,913,915 | 1,948,195 | 1,996,683 | 1,913,779 | 2,022,177 | 1,977,865 | 2,062,399 | 1,953,276 | 1,903,875 | 1,956,124 | 1,793,622 | 1,794,980 | 1,639,496 | 1,769,666 | 1,695,680 | 1,538,049 | 1,648,501 | 1,763,122 | 1,688,247 | 1,807,701 | 1,764,247 | 1,818,761 | 1,850,643 | 1,832,168 | 1,942,973 | 2,008,243 | 1,960,275 | 1,875,711 | 1,821,286 | 1,992,035 | 2,089,833 | 2,114,912 | 2,204,579 | 2,275,423 | 2,190,903 | 2,288,731 | 2,335,302 | 2,376,456 | 2,439,267 | 2,483,939 | 2,434,666 | 2,546,384 | 2,480,024 | 2,567,540 | 2,549,061 | 2,435,576 | 2,457,221 | 2,602,668 | 2,714,981 | 2,749,930 | 2,821,663 | 2,912,368 | 2,970,689 | 2,979,081 | 3,003,162 | 3,070,370 | 3,092,861 | 2,895,861 | 3,173,627 | 3,318,094 | 3,294,285 | 3,311,191 | 3,396,519 | |
| EATON VANCE Index: MSCI ACWI Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI ACWI Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,061 | 9,891 | 9,966 | 10,181 | 10,459 | 10,753 | 10,884 | 11,054 | 11,298 | 11,349 | 11,667 | 11,711 | 11,938 | 12,185 | 12,421 | 12,622 | 13,334 | 12,774 | 12,500 | 12,620 | 12,635 | 12,567 | 12,946 | 13,048 | 13,104 | 12,122 | 12,300 | 11,433 | 12,336 | 12,666 | 12,825 | 13,258 | 12,472 | 13,289 | 13,327 | 13,011 | 13,285 | 13,649 | 13,982 | 14,474 | 14,314 | 13,158 | 11,382 | 12,601 | 13,149 | 13,569 | 14,287 | 15,161 | 14,672 | 14,316 | 16,080 | 16,827 | 16,751 | 17,139 | 17,596 | 18,366 | 18,651 | 18,897 | 19,027 | 19,504 | 18,698 | 19,652 | 19,179 | 19,946 | 18,967 | 18,477 | 18,877 | 17,366 | 17,386 | 15,921 | 17,033 | 16,406 | 14,835 | 15,730 | 16,950 | 16,283 | 17,451 | 16,950 | 17,473 | 17,724 | 17,534 | 18,552 | 19,232 | 18,694 | 17,921 | 17,382 | 18,987 | 19,899 | 20,015 | 20,874 | 21,530 | 20,819 | 21,665 | 22,147 | 22,504 | 23,076 | 23,612 | 23,082 | 23,945 | 23,379 | 24,163 | 24,018 | 23,069 | 23,284 | 24,622 | 25,728 | 26,077 | 26,721 | 27,689 | 28,309 | 28,305 | 28,601 | 29,449 | 29,827 | 27,685 | 30,502 | 32,075 | 31,818 | 31,842 | 32,693 | |
| EATON VANCE Index: MSCI ACWI Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI ACWI Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,061 | 9,891 | 9,966 | 10,181 | 10,459 | 10,753 | 10,884 | 11,054 | 11,298 | 11,349 | 11,667 | 11,711 | 11,938 | 12,185 | 12,421 | 12,622 | 13,334 | 12,774 | 12,500 | 12,620 | 12,635 | 12,567 | 12,946 | 13,048 | 13,104 | 12,122 | 12,300 | 11,433 | 12,336 | 12,666 | 12,825 | 13,258 | 12,472 | 13,289 | 13,327 | 13,011 | 13,285 | 13,649 | 13,982 | 14,474 | 14,314 | 13,158 | 11,382 | 12,601 | 13,149 | 13,569 | 14,287 | 15,161 | 14,672 | 14,316 | 16,080 | 16,827 | 16,751 | 17,139 | 17,596 | 18,366 | 18,651 | 18,897 | 19,027 | 19,504 | 18,698 | 19,652 | 19,179 | 19,946 | 18,967 | 18,477 | 18,877 | 17,366 | 17,386 | 15,921 | 17,033 | 16,406 | 14,835 | 15,730 | 16,950 | 16,283 | 17,451 | 16,950 | 17,473 | 17,724 | 17,534 | 18,552 | 19,232 | 18,694 | 17,921 | 17,382 | 18,987 | 19,899 | 20,015 | 20,874 | 21,530 | 20,819 | 21,665 | 22,147 | 22,504 | 23,076 | 23,612 | 23,082 | 23,945 | 23,379 | 24,163 | 24,018 | 23,069 | 23,284 | 24,622 | 25,728 | 26,077 | 26,721 | 27,689 | 28,309 | 28,305 | 28,601 | 29,449 | 29,827 | 27,685 | 30,502 | 32,075 | 31,818 | 31,842 | 32,693 | |
| EATON VANCE Index: MSCI ACWI Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI ACWI Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 1,000,000 | 1,006,129 | 989,052 | 996,568 | 1,018,096 | 1,045,934 | 1,075,274 | 1,088,428 | 1,105,391 | 1,129,801 | 1,134,939 | 1,166,656 | 1,171,126 | 1,193,752 | 1,218,541 | 1,242,130 | 1,262,155 | 1,333,361 | 1,277,362 | 1,250,018 | 1,261,955 | 1,263,531 | 1,256,688 | 1,294,586 | 1,304,757 | 1,310,435 | 1,212,233 | 1,229,962 | 1,143,330 | 1,233,607 | 1,266,603 | 1,282,532 | 1,325,837 | 1,247,190 | 1,328,855 | 1,332,749 | 1,301,133 | 1,328,511 | 1,364,871 | 1,398,189 | 1,447,427 | 1,431,439 | 1,315,822 | 1,138,181 | 1,260,109 | 1,314,912 | 1,356,927 | 1,428,691 | 1,516,134 | 1,467,249 | 1,431,582 | 1,608,043 | 1,682,704 | 1,675,051 | 1,713,851 | 1,759,627 | 1,836,562 | 1,865,143 | 1,889,724 | 1,902,743 | 1,950,367 | 1,869,798 | 1,965,239 | 1,917,915 | 1,994,633 | 1,896,671 | 1,847,686 | 1,887,705 | 1,736,609 | 1,738,642 | 1,592,081 | 1,703,260 | 1,640,554 | 1,483,505 | 1,573,030 | 1,695,040 | 1,628,338 | 1,745,053 | 1,695,039 | 1,747,302 | 1,772,415 | 1,753,431 | 1,855,237 | 1,923,154 | 1,869,413 | 1,792,112 | 1,738,228 | 1,898,660 | 1,989,860 | 2,001,525 | 2,087,417 | 2,152,955 | 2,081,923 | 2,166,477 | 2,214,729 | 2,250,447 | 2,307,601 | 2,361,209 | 2,308,207 | 2,394,543 | 2,337,860 | 2,416,333 | 2,401,776 | 2,306,894 | 2,328,410 | 2,462,244 | 2,572,802 | 2,607,694 | 2,672,080 | 2,768,921 | 2,830,851 | 2,830,536 | 2,860,077 | 2,944,863 | 2,982,721 | 2,768,510 | 3,050,166 | 3,207,544 | 3,181,815 | 3,184,249 | 3,269,271 | |
| EATON VANCE Index: MSCI China Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI China Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,253 | 10,054 | 9,934 | 9,527 | 10,174 | 10,534 | 10,759 | 11,046 | 11,629 | 11,896 | 12,953 | 13,500 | 13,640 | 14,182 | 14,403 | 14,679 | 16,512 | 15,454 | 14,946 | 14,942 | 15,217 | 14,422 | 14,063 | 13,529 | 13,340 | 11,810 | 12,675 | 11,908 | 13,225 | 13,681 | 14,015 | 14,327 | 12,452 | 13,452 | 13,379 | 12,819 | 12,816 | 13,333 | 13,571 | 14,701 | 13,995 | 14,131 | 13,200 | 14,033 | 13,964 | 15,218 | 16,655 | 17,600 | 17,119 | 18,025 | 18,525 | 19,037 | 20,439 | 20,227 | 18,956 | 19,219 | 19,367 | 19,386 | 16,702 | 16,703 | 15,864 | 16,365 | 15,387 | 14,903 | 14,463 | 13,899 | 12,788 | 12,265 | 12,410 | 13,224 | 11,968 | 11,995 | 10,249 | 8,526 | 11,059 | 11,634 | 13,005 | 11,656 | 12,182 | 11,554 | 10,580 | 10,999 | 12,183 | 11,092 | 10,786 | 10,327 | 10,587 | 10,332 | 9,235 | 10,010 | 10,105 | 10,771 | 11,030 | 10,821 | 10,678 | 10,785 | 13,363 | 12,573 | 12,015 | 12,338 | 12,452 | 13,916 | 14,192 | 13,586 | 13,958 | 14,476 | 15,172 | 15,921 | 17,473 | 16,807 | 16,387 | 16,184 | 16,944 | 15,967 | 14,738 | 15,273 | 14,810 | 13,761 | 14,999 | 14,948 | |
| EATON VANCE Index: MSCI China Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI China Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,253 | 10,054 | 9,934 | 9,527 | 10,174 | 10,534 | 10,759 | 11,046 | 11,629 | 11,896 | 12,953 | 13,500 | 13,640 | 14,182 | 14,403 | 14,679 | 16,512 | 15,454 | 14,946 | 14,942 | 15,217 | 14,422 | 14,063 | 13,529 | 13,340 | 11,810 | 12,675 | 11,908 | 13,225 | 13,681 | 14,015 | 14,327 | 12,452 | 13,452 | 13,379 | 12,819 | 12,816 | 13,333 | 13,571 | 14,701 | 13,995 | 14,131 | 13,200 | 14,033 | 13,964 | 15,218 | 16,655 | 17,600 | 17,119 | 18,025 | 18,525 | 19,037 | 20,439 | 20,227 | 18,956 | 19,219 | 19,367 | 19,386 | 16,702 | 16,703 | 15,864 | 16,365 | 15,387 | 14,903 | 14,463 | 13,899 | 12,788 | 12,265 | 12,410 | 13,224 | 11,968 | 11,995 | 10,249 | 8,526 | 11,059 | 11,634 | 13,005 | 11,656 | 12,182 | 11,554 | 10,580 | 10,999 | 12,183 | 11,092 | 10,786 | 10,327 | 10,587 | 10,332 | 9,235 | 10,010 | 10,105 | 10,771 | 11,030 | 10,821 | 10,678 | 10,785 | 13,363 | 12,573 | 12,015 | 12,338 | 12,452 | 13,916 | 14,192 | 13,586 | 13,958 | 14,476 | 15,172 | 15,921 | 17,473 | 16,807 | 16,387 | 16,184 | 16,944 | 15,967 | 14,738 | 15,273 | 14,810 | 13,761 | 14,999 | 14,948 | |
| EATON VANCE Index: MSCI China Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI China Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 1,000,000 | 1,025,273 | 1,005,418 | 993,384 | 952,740 | 1,017,407 | 1,053,408 | 1,075,898 | 1,104,590 | 1,162,868 | 1,189,635 | 1,295,339 | 1,349,963 | 1,363,990 | 1,418,200 | 1,440,307 | 1,467,879 | 1,651,189 | 1,545,446 | 1,494,579 | 1,494,225 | 1,521,668 | 1,442,237 | 1,406,264 | 1,352,880 | 1,333,953 | 1,180,958 | 1,267,519 | 1,190,805 | 1,322,495 | 1,368,147 | 1,401,473 | 1,432,692 | 1,245,195 | 1,345,194 | 1,337,904 | 1,281,904 | 1,281,578 | 1,333,312 | 1,357,086 | 1,470,134 | 1,399,521 | 1,413,130 | 1,319,951 | 1,403,296 | 1,396,369 | 1,521,788 | 1,665,506 | 1,760,031 | 1,711,938 | 1,802,486 | 1,852,470 | 1,903,735 | 2,043,908 | 2,022,744 | 1,895,620 | 1,921,928 | 1,936,712 | 1,938,608 | 1,670,242 | 1,670,309 | 1,586,413 | 1,636,472 | 1,538,745 | 1,490,256 | 1,446,293 | 1,389,890 | 1,278,753 | 1,226,532 | 1,240,988 | 1,322,394 | 1,196,805 | 1,199,478 | 1,024,901 | 852,618 | 1,105,916 | 1,163,435 | 1,300,495 | 1,165,571 | 1,218,208 | 1,155,384 | 1,057,964 | 1,099,940 | 1,218,279 | 1,109,177 | 1,078,634 | 1,032,657 | 1,058,683 | 1,033,160 | 923,522 | 1,001,044 | 1,010,485 | 1,077,137 | 1,102,973 | 1,082,132 | 1,067,756 | 1,078,484 | 1,336,293 | 1,257,259 | 1,201,479 | 1,233,793 | 1,245,152 | 1,391,616 | 1,419,162 | 1,358,564 | 1,395,796 | 1,447,649 | 1,517,194 | 1,592,095 | 1,747,347 | 1,680,662 | 1,638,654 | 1,618,400 | 1,694,413 | 1,596,683 | 1,473,795 | 1,527,345 | 1,481,044 | 1,376,106 | 1,499,929 | 1,494,793 | |
| EATON VANCE Index: MSCI World | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI World Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,053 | 9,859 | 10,000 | 10,240 | 10,487 | 10,778 | 10,892 | 11,054 | 11,288 | 11,331 | 11,602 | 11,619 | 11,879 | 12,104 | 12,366 | 12,533 | 13,195 | 12,648 | 12,373 | 12,515 | 12,593 | 12,587 | 12,980 | 13,141 | 13,214 | 12,244 | 12,383 | 11,441 | 12,332 | 12,703 | 12,869 | 13,326 | 12,557 | 13,384 | 13,451 | 13,175 | 13,456 | 13,798 | 14,182 | 14,607 | 14,518 | 13,291 | 11,532 | 12,792 | 13,410 | 13,765 | 14,423 | 15,387 | 14,856 | 14,400 | 16,242 | 16,930 | 16,762 | 17,192 | 17,764 | 18,590 | 18,858 | 19,139 | 19,482 | 19,967 | 19,138 | 20,222 | 19,779 | 20,624 | 19,533 | 19,039 | 19,561 | 17,936 | 17,950 | 16,395 | 17,697 | 16,957 | 15,380 | 16,485 | 17,631 | 16,882 | 18,077 | 17,642 | 18,188 | 18,506 | 18,322 | 19,430 | 20,082 | 19,603 | 18,757 | 18,213 | 19,920 | 20,898 | 21,149 | 22,046 | 22,754 | 21,909 | 22,887 | 23,353 | 23,765 | 24,393 | 24,839 | 24,347 | 25,464 | 24,800 | 25,675 | 25,491 | 24,356 | 24,572 | 26,027 | 27,150 | 27,499 | 28,217 | 29,124 | 29,707 | 29,791 | 30,032 | 30,704 | 30,929 | 28,959 | 31,736 | 33,181 | 32,943 | 33,112 | 33,965 | |
| EATON VANCE Index: MSCI World | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI World Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,053 | 9,859 | 10,000 | 10,240 | 10,487 | 10,778 | 10,892 | 11,054 | 11,288 | 11,331 | 11,602 | 11,619 | 11,879 | 12,104 | 12,366 | 12,533 | 13,195 | 12,648 | 12,373 | 12,515 | 12,593 | 12,587 | 12,980 | 13,141 | 13,214 | 12,244 | 12,383 | 11,441 | 12,332 | 12,703 | 12,869 | 13,326 | 12,557 | 13,384 | 13,451 | 13,175 | 13,456 | 13,798 | 14,182 | 14,607 | 14,518 | 13,291 | 11,532 | 12,792 | 13,410 | 13,765 | 14,423 | 15,387 | 14,856 | 14,400 | 16,242 | 16,930 | 16,762 | 17,192 | 17,764 | 18,590 | 18,858 | 19,139 | 19,482 | 19,967 | 19,138 | 20,222 | 19,779 | 20,624 | 19,533 | 19,039 | 19,561 | 17,936 | 17,950 | 16,395 | 17,697 | 16,957 | 15,380 | 16,485 | 17,631 | 16,882 | 18,077 | 17,642 | 18,188 | 18,506 | 18,322 | 19,430 | 20,082 | 19,603 | 18,757 | 18,213 | 19,920 | 20,898 | 21,149 | 22,046 | 22,754 | 21,909 | 22,887 | 23,353 | 23,765 | 24,393 | 24,839 | 24,347 | 25,464 | 24,800 | 25,675 | 25,491 | 24,356 | 24,572 | 26,027 | 27,150 | 27,499 | 28,217 | 29,124 | 29,707 | 29,791 | 30,032 | 30,704 | 30,929 | 28,959 | 31,736 | 33,181 | 32,943 | 33,112 | 33,965 | |
| EATON VANCE Index: MSCI World | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI World Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 1,000,000 | 1,005,312 | 985,856 | 1,000,032 | 1,023,961 | 1,048,674 | 1,077,768 | 1,089,249 | 1,105,377 | 1,128,761 | 1,133,104 | 1,160,221 | 1,161,855 | 1,187,932 | 1,210,382 | 1,236,608 | 1,253,332 | 1,319,508 | 1,264,844 | 1,237,275 | 1,251,493 | 1,259,335 | 1,258,734 | 1,298,049 | 1,314,109 | 1,321,427 | 1,224,397 | 1,238,306 | 1,144,148 | 1,233,169 | 1,270,250 | 1,286,934 | 1,332,568 | 1,255,678 | 1,338,421 | 1,345,050 | 1,317,538 | 1,345,576 | 1,379,818 | 1,418,246 | 1,460,734 | 1,451,843 | 1,329,126 | 1,153,226 | 1,279,209 | 1,341,005 | 1,376,476 | 1,442,329 | 1,538,697 | 1,485,613 | 1,440,042 | 1,624,168 | 1,693,027 | 1,676,201 | 1,719,152 | 1,776,352 | 1,859,024 | 1,885,804 | 1,913,915 | 1,948,195 | 1,996,683 | 1,913,779 | 2,022,177 | 1,977,865 | 2,062,399 | 1,953,276 | 1,903,875 | 1,956,124 | 1,793,622 | 1,794,980 | 1,639,496 | 1,769,666 | 1,695,680 | 1,538,049 | 1,648,501 | 1,763,122 | 1,688,247 | 1,807,701 | 1,764,247 | 1,818,761 | 1,850,643 | 1,832,168 | 1,942,973 | 2,008,243 | 1,960,275 | 1,875,711 | 1,821,286 | 1,992,035 | 2,089,833 | 2,114,912 | 2,204,579 | 2,275,423 | 2,190,903 | 2,288,731 | 2,335,302 | 2,376,456 | 2,439,267 | 2,483,939 | 2,434,666 | 2,546,384 | 2,480,024 | 2,567,540 | 2,549,061 | 2,435,576 | 2,457,221 | 2,602,668 | 2,714,981 | 2,749,930 | 2,821,663 | 2,912,368 | 2,970,689 | 2,979,081 | 3,003,162 | 3,070,370 | 3,092,861 | 2,895,861 | 3,173,627 | 3,318,094 | 3,294,285 | 3,311,191 | 3,396,519 | |
| EATON VANCE Index: MSCI World | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI World Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,053 | 9,859 | 10,000 | 10,240 | 10,487 | 10,778 | 10,892 | 11,054 | 11,288 | 11,331 | 11,602 | 11,619 | 11,879 | 12,104 | 12,366 | 12,533 | 13,195 | 12,648 | 12,373 | 12,515 | 12,593 | 12,587 | 12,980 | 13,141 | 13,214 | 12,244 | 12,383 | 11,441 | 12,332 | 12,703 | 12,869 | 13,326 | 12,557 | 13,384 | 13,451 | 13,175 | 13,456 | 13,798 | 14,182 | 14,607 | 14,518 | 13,291 | 11,532 | 12,792 | 13,410 | 13,765 | 14,423 | 15,387 | 14,856 | 14,400 | 16,242 | 16,930 | 16,762 | 17,192 | 17,764 | 18,590 | 18,858 | 19,139 | 19,482 | 19,967 | 19,138 | 20,222 | 19,779 | 20,624 | 19,533 | 19,039 | 19,561 | 17,936 | 17,950 | 16,395 | 17,697 | 16,957 | 15,380 | 16,485 | 17,631 | 16,882 | 18,077 | 17,642 | 18,188 | 18,506 | 18,322 | 19,430 | 20,082 | 19,603 | 18,757 | 18,213 | 19,920 | 20,898 | 21,149 | 22,046 | 22,754 | 21,909 | 22,887 | 23,353 | 23,765 | 24,393 | 24,839 | 24,347 | 25,464 | 24,800 | 25,675 | 25,491 | 24,356 | 24,572 | 26,027 | 27,150 | 27,499 | 28,217 | 29,124 | 29,707 | 29,791 | 30,032 | 30,704 | 30,929 | 28,959 | 31,736 | 33,181 | 32,943 | 33,112 | 33,965 | |
| EATON VANCE Index: MSCI ACWI Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI ACWI Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,061 | 9,891 | 9,966 | 10,181 | 10,459 | 10,753 | 10,884 | 11,054 | 11,298 | 11,349 | 11,667 | 11,711 | 11,938 | 12,185 | 12,421 | 12,622 | 13,334 | 12,774 | 12,500 | 12,620 | 12,635 | 12,567 | 12,946 | 13,048 | 13,104 | 12,122 | 12,300 | 11,433 | 12,336 | 12,666 | 12,825 | 13,258 | 12,472 | 13,289 | 13,327 | 13,011 | 13,285 | 13,649 | 13,982 | 14,474 | 14,314 | 13,158 | 11,382 | 12,601 | 13,149 | 13,569 | 14,287 | 15,161 | 14,672 | 14,316 | 16,080 | 16,827 | 16,751 | 17,139 | 17,596 | 18,366 | 18,651 | 18,897 | 19,027 | 19,504 | 18,698 | 19,652 | 19,179 | 19,946 | 18,967 | 18,477 | 18,877 | 17,366 | 17,386 | 15,921 | 17,033 | 16,406 | 14,835 | 15,730 | 16,950 | 16,283 | 17,451 | 16,950 | 17,473 | 17,724 | 17,534 | 18,552 | 19,232 | 18,694 | 17,921 | 17,382 | 18,987 | 19,899 | 20,015 | 20,874 | 21,530 | 20,819 | 21,665 | 22,147 | 22,504 | 23,076 | 23,612 | 23,082 | 23,945 | 23,379 | 24,163 | 24,018 | 23,069 | 23,284 | 24,622 | 25,728 | 26,077 | 26,721 | 27,689 | 28,309 | 28,305 | 28,601 | 29,449 | 29,827 | 27,685 | 30,502 | 32,075 | 31,818 | 31,842 | 32,693 | |
| EATON VANCE Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 9,994 | 9,918 | 9,683 | 9,697 | 9,716 | 9,781 | 9,776 | 9,851 | 9,927 | 9,917 | 9,960 | 10,049 | 10,001 | 10,007 | 9,994 | 10,040 | 9,925 | 9,831 | 9,894 | 9,820 | 9,890 | 9,878 | 9,880 | 9,944 | 9,880 | 9,802 | 9,860 | 10,041 | 10,148 | 10,142 | 10,337 | 10,340 | 10,523 | 10,655 | 10,679 | 10,955 | 10,897 | 10,930 | 10,924 | 10,917 | 11,127 | 11,327 | 11,260 | 11,460 | 11,514 | 11,586 | 11,759 | 11,665 | 11,658 | 11,606 | 11,720 | 11,736 | 11,652 | 11,484 | 11,340 | 11,430 | 11,467 | 11,548 | 11,677 | 11,655 | 11,554 | 11,551 | 11,585 | 11,555 | 11,306 | 11,180 | 10,869 | 10,457 | 10,524 | 10,359 | 10,612 | 10,313 | 9,867 | 9,739 | 10,097 | 10,052 | 10,361 | 10,093 | 10,350 | 10,412 | 10,299 | 10,262 | 10,255 | 10,189 | 9,931 | 9,774 | 10,216 | 10,608 | 10,578 | 10,429 | 10,525 | 10,259 | 10,433 | 10,532 | 10,778 | 10,933 | 11,079 | 10,805 | 10,919 | 10,740 | 10,797 | 11,035 | 11,039 | 11,082 | 11,003 | 11,172 | 11,143 | 11,276 | 11,399 | 11,470 | 11,541 | 11,524 | 11,537 | 11,726 | 11,519 | 11,532 | 11,568 | 11,596 | 11,445 | 11,489 | |
| EATON VANCE Index: MSCI ACWI Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI ACWI Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,061 | 9,891 | 9,966 | 10,181 | 10,459 | 10,753 | 10,884 | 11,054 | 11,298 | 11,349 | 11,667 | 11,711 | 11,938 | 12,185 | 12,421 | 12,622 | 13,334 | 12,774 | 12,500 | 12,620 | 12,635 | 12,567 | 12,946 | 13,048 | 13,104 | 12,122 | 12,300 | 11,433 | 12,336 | 12,666 | 12,825 | 13,258 | 12,472 | 13,289 | 13,327 | 13,011 | 13,285 | 13,649 | 13,982 | 14,474 | 14,314 | 13,158 | 11,382 | 12,601 | 13,149 | 13,569 | 14,287 | 15,161 | 14,672 | 14,316 | 16,080 | 16,827 | 16,751 | 17,139 | 17,596 | 18,366 | 18,651 | 18,897 | 19,027 | 19,504 | 18,698 | 19,652 | 19,179 | 19,946 | 18,967 | 18,477 | 18,877 | 17,366 | 17,386 | 15,921 | 17,033 | 16,406 | 14,835 | 15,730 | 16,950 | 16,283 | 17,451 | 16,950 | 17,473 | 17,724 | 17,534 | 18,552 | 19,232 | 18,694 | 17,921 | 17,382 | 18,987 | 19,899 | 20,015 | 20,874 | 21,530 | 20,819 | 21,665 | 22,147 | 22,504 | 23,076 | 23,612 | 23,082 | 23,945 | 23,379 | 24,163 | 24,018 | 23,069 | 23,284 | 24,622 | 25,728 | 26,077 | 26,721 | 27,689 | 28,309 | 28,305 | 28,601 | 29,449 | 29,827 | 27,685 | 30,502 | 32,075 | 31,818 | 31,842 | 32,693 | |
| EATON VANCE Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 9,994 | 9,918 | 9,683 | 9,697 | 9,716 | 9,781 | 9,776 | 9,851 | 9,927 | 9,917 | 9,960 | 10,049 | 10,001 | 10,007 | 9,994 | 10,040 | 9,925 | 9,831 | 9,894 | 9,820 | 9,890 | 9,878 | 9,880 | 9,944 | 9,880 | 9,802 | 9,860 | 10,041 | 10,148 | 10,142 | 10,337 | 10,340 | 10,523 | 10,655 | 10,679 | 10,955 | 10,897 | 10,930 | 10,924 | 10,917 | 11,127 | 11,327 | 11,260 | 11,460 | 11,514 | 11,586 | 11,759 | 11,665 | 11,658 | 11,606 | 11,720 | 11,736 | 11,652 | 11,484 | 11,340 | 11,430 | 11,467 | 11,548 | 11,677 | 11,655 | 11,554 | 11,551 | 11,585 | 11,555 | 11,306 | 11,180 | 10,869 | 10,457 | 10,524 | 10,359 | 10,612 | 10,313 | 9,867 | 9,739 | 10,097 | 10,052 | 10,361 | 10,093 | 10,350 | 10,412 | 10,299 | 10,262 | 10,255 | 10,189 | 9,931 | 9,774 | 10,216 | 10,608 | 10,578 | 10,429 | 10,525 | 10,259 | 10,433 | 10,532 | 10,778 | 10,933 | 11,079 | 10,805 | 10,919 | 10,740 | 10,797 | 11,035 | 11,039 | 11,082 | 11,003 | 11,172 | 11,143 | 11,276 | 11,399 | 11,470 | 11,541 | 11,524 | 11,537 | 11,726 | 11,519 | 11,532 | 11,568 | 11,596 | 11,445 | 11,489 | |
| EATON VANCE Index: MSCI ACWI Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI ACWI Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 1,000,000 | 1,006,129 | 989,052 | 996,568 | 1,018,096 | 1,045,934 | 1,075,274 | 1,088,428 | 1,105,391 | 1,129,801 | 1,134,939 | 1,166,656 | 1,171,126 | 1,193,752 | 1,218,541 | 1,242,130 | 1,262,155 | 1,333,361 | 1,277,362 | 1,250,018 | 1,261,955 | 1,263,531 | 1,256,688 | 1,294,586 | 1,304,757 | 1,310,435 | 1,212,233 | 1,229,962 | 1,143,330 | 1,233,607 | 1,266,603 | 1,282,532 | 1,325,837 | 1,247,190 | 1,328,855 | 1,332,749 | 1,301,133 | 1,328,511 | 1,364,871 | 1,398,189 | 1,447,427 | 1,431,439 | 1,315,822 | 1,138,181 | 1,260,109 | 1,314,912 | 1,356,927 | 1,428,691 | 1,516,134 | 1,467,249 | 1,431,582 | 1,608,043 | 1,682,704 | 1,675,051 | 1,713,851 | 1,759,627 | 1,836,562 | 1,865,143 | 1,889,724 | 1,902,743 | 1,950,367 | 1,869,798 | 1,965,239 | 1,917,915 | 1,994,633 | 1,896,671 | 1,847,686 | 1,887,705 | 1,736,609 | 1,738,642 | 1,592,081 | 1,703,260 | 1,640,554 | 1,483,505 | 1,573,030 | 1,695,040 | 1,628,338 | 1,745,053 | 1,695,039 | 1,747,302 | 1,772,415 | 1,753,431 | 1,855,237 | 1,923,154 | 1,869,413 | 1,792,112 | 1,738,228 | 1,898,660 | 1,989,860 | 2,001,525 | 2,087,417 | 2,152,955 | 2,081,923 | 2,166,477 | 2,214,729 | 2,250,447 | 2,307,601 | 2,361,209 | 2,308,207 | 2,394,543 | 2,337,860 | 2,416,333 | 2,401,776 | 2,306,894 | 2,328,410 | 2,462,244 | 2,572,802 | 2,607,694 | 2,672,080 | 2,768,921 | 2,830,851 | 2,830,536 | 2,860,077 | 2,944,863 | 2,982,721 | 2,768,510 | 3,050,166 | 3,207,544 | 3,181,815 | 3,184,249 | 3,269,271 | |
| EATON VANCE Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 1,000,000 | 999,414 | 991,770 | 968,311 | 969,676 | 971,579 | 978,109 | 977,596 | 985,140 | 992,723 | 991,724 | 995,991 | 1,004,925 | 1,000,139 | 1,000,718 | 999,434 | 1,004,021 | 992,458 | 983,050 | 989,354 | 981,996 | 989,004 | 987,788 | 988,022 | 994,380 | 987,977 | 980,169 | 986,020 | 1,004,135 | 1,014,798 | 1,014,210 | 1,033,685 | 1,033,950 | 1,052,304 | 1,065,519 | 1,067,862 | 1,095,533 | 1,089,698 | 1,092,980 | 1,092,424 | 1,091,662 | 1,112,671 | 1,132,697 | 1,126,032 | 1,146,048 | 1,151,384 | 1,158,637 | 1,175,943 | 1,166,451 | 1,165,812 | 1,160,606 | 1,171,994 | 1,173,609 | 1,165,195 | 1,148,369 | 1,134,029 | 1,142,988 | 1,146,722 | 1,154,779 | 1,167,691 | 1,165,468 | 1,155,377 | 1,155,059 | 1,158,476 | 1,155,512 | 1,130,617 | 1,118,004 | 1,086,944 | 1,045,696 | 1,052,438 | 1,035,928 | 1,061,240 | 1,031,253 | 986,696 | 973,916 | 1,009,733 | 1,005,178 | 1,036,102 | 1,009,313 | 1,034,952 | 1,041,224 | 1,029,887 | 1,026,214 | 1,025,498 | 1,018,948 | 993,055 | 977,383 | 1,021,645 | 1,060,753 | 1,057,840 | 1,042,894 | 1,052,524 | 1,025,939 | 1,043,332 | 1,053,210 | 1,077,810 | 1,093,298 | 1,107,936 | 1,080,461 | 1,091,884 | 1,074,015 | 1,079,713 | 1,103,468 | 1,103,883 | 1,108,222 | 1,100,287 | 1,117,205 | 1,114,258 | 1,127,585 | 1,139,886 | 1,147,008 | 1,154,135 | 1,152,428 | 1,153,658 | 1,172,551 | 1,151,886 | 1,153,181 | 1,156,768 | 1,159,558 | 1,144,450 | 1,148,905 | |
| EATON VANCE Index: MSCI World Health Care Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI World Health Care Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 9,987 | 9,297 | 9,306 | 9,452 | 9,659 | 10,217 | 10,250 | 10,443 | 10,671 | 10,961 | 10,969 | 11,077 | 11,226 | 11,080 | 11,331 | 11,324 | 11,958 | 11,422 | 11,184 | 11,291 | 11,345 | 11,495 | 12,202 | 12,562 | 12,817 | 11,974 | 12,627 | 11,608 | 12,206 | 12,447 | 12,553 | 12,229 | 11,936 | 12,741 | 12,600 | 12,596 | 12,583 | 13,211 | 13,835 | 14,306 | 14,103 | 13,139 | 12,664 | 14,134 | 14,705 | 14,508 | 15,103 | 15,414 | 15,201 | 14,460 | 15,754 | 16,240 | 16,413 | 15,967 | 16,358 | 16,982 | 17,332 | 17,851 | 18,515 | 19,029 | 18,032 | 18,793 | 18,122 | 19,457 | 18,019 | 17,939 | 18,803 | 17,932 | 18,020 | 17,448 | 18,018 | 16,933 | 16,266 | 17,633 | 18,624 | 18,403 | 18,284 | 17,538 | 18,109 | 18,742 | 17,974 | 18,547 | 18,787 | 18,642 | 18,036 | 17,294 | 18,286 | 19,095 | 19,608 | 20,049 | 20,521 | 19,710 | 20,236 | 20,619 | 21,294 | 22,463 | 21,794 | 20,743 | 20,562 | 19,310 | 20,545 | 20,776 | 20,295 | 19,911 | 19,187 | 19,465 | 18,886 | 19,858 | 20,050 | 20,672 | 22,351 | 22,174 | 22,417 | 23,065 | 21,154 | 21,103 | 21,507 | 22,582 | 22,909 | 23,759 | |
| EATON VANCE Index: S&P 500 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,002 | 9,819 | 10,183 | 10,384 | 10,581 | 11,001 | 11,014 | 11,127 | 11,284 | 11,354 | 11,588 | 11,623 | 11,863 | 12,140 | 12,512 | 12,651 | 13,376 | 12,883 | 12,555 | 12,604 | 12,907 | 12,987 | 13,470 | 13,909 | 13,988 | 13,032 | 13,297 | 12,097 | 13,066 | 13,486 | 13,748 | 14,304 | 13,395 | 14,339 | 14,546 | 14,315 | 14,583 | 14,899 | 15,440 | 15,906 | 15,899 | 14,591 | 12,788 | 14,428 | 15,115 | 15,416 | 16,285 | 17,455 | 16,792 | 16,346 | 18,135 | 18,832 | 18,642 | 19,156 | 19,995 | 21,062 | 21,209 | 21,704 | 22,220 | 22,895 | 21,831 | 23,360 | 23,198 | 24,238 | 22,984 | 22,295 | 23,123 | 21,107 | 21,146 | 19,400 | 21,189 | 20,325 | 18,453 | 19,947 | 21,062 | 19,848 | 21,095 | 20,581 | 21,336 | 21,669 | 21,763 | 23,201 | 23,947 | 23,566 | 22,442 | 21,970 | 23,977 | 25,066 | 25,487 | 26,848 | 27,712 | 26,580 | 27,898 | 28,899 | 29,251 | 29,960 | 30,600 | 30,323 | 32,102 | 31,337 | 32,210 | 31,790 | 29,998 | 29,795 | 31,670 | 33,281 | 34,028 | 34,718 | 35,985 | 36,827 | 36,918 | 36,940 | 37,476 | 37,191 | 35,339 | 39,047 | 41,102 | 40,711 | 40,685 | 41,793 | |
| EATON VANCE Index: MSCI World Health Care Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI World Health Care Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 9,987 | 9,297 | 9,306 | 9,452 | 9,659 | 10,217 | 10,250 | 10,443 | 10,671 | 10,961 | 10,969 | 11,077 | 11,226 | 11,080 | 11,331 | 11,324 | 11,958 | 11,422 | 11,184 | 11,291 | 11,345 | 11,495 | 12,202 | 12,562 | 12,817 | 11,974 | 12,627 | 11,608 | 12,206 | 12,447 | 12,553 | 12,229 | 11,936 | 12,741 | 12,600 | 12,596 | 12,583 | 13,211 | 13,835 | 14,306 | 14,103 | 13,139 | 12,664 | 14,134 | 14,705 | 14,508 | 15,103 | 15,414 | 15,201 | 14,460 | 15,754 | 16,240 | 16,413 | 15,967 | 16,358 | 16,982 | 17,332 | 17,851 | 18,515 | 19,029 | 18,032 | 18,793 | 18,122 | 19,457 | 18,019 | 17,939 | 18,803 | 17,932 | 18,020 | 17,448 | 18,018 | 16,933 | 16,266 | 17,633 | 18,624 | 18,403 | 18,284 | 17,538 | 18,109 | 18,742 | 17,974 | 18,547 | 18,787 | 18,642 | 18,036 | 17,294 | 18,286 | 19,095 | 19,608 | 20,049 | 20,521 | 19,710 | 20,236 | 20,619 | 21,294 | 22,463 | 21,794 | 20,743 | 20,562 | 19,310 | 20,545 | 20,776 | 20,295 | 19,911 | 19,187 | 19,465 | 18,886 | 19,858 | 20,050 | 20,672 | 22,351 | 22,174 | 22,417 | 23,065 | 21,154 | 21,103 | 21,507 | 22,582 | 22,909 | 23,759 | |
| EATON VANCE Index: S&P 500 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,002 | 9,819 | 10,183 | 10,384 | 10,581 | 11,001 | 11,014 | 11,127 | 11,284 | 11,354 | 11,588 | 11,623 | 11,863 | 12,140 | 12,512 | 12,651 | 13,376 | 12,883 | 12,555 | 12,604 | 12,907 | 12,987 | 13,470 | 13,909 | 13,988 | 13,032 | 13,297 | 12,097 | 13,066 | 13,486 | 13,748 | 14,304 | 13,395 | 14,339 | 14,546 | 14,315 | 14,583 | 14,899 | 15,440 | 15,906 | 15,899 | 14,591 | 12,788 | 14,428 | 15,115 | 15,416 | 16,285 | 17,455 | 16,792 | 16,346 | 18,135 | 18,832 | 18,642 | 19,156 | 19,995 | 21,062 | 21,209 | 21,704 | 22,220 | 22,895 | 21,831 | 23,360 | 23,198 | 24,238 | 22,984 | 22,295 | 23,123 | 21,107 | 21,146 | 19,400 | 21,189 | 20,325 | 18,453 | 19,947 | 21,062 | 19,848 | 21,095 | 20,581 | 21,336 | 21,669 | 21,763 | 23,201 | 23,947 | 23,566 | 22,442 | 21,970 | 23,977 | 25,066 | 25,487 | 26,848 | 27,712 | 26,580 | 27,898 | 28,899 | 29,251 | 29,960 | 30,600 | 30,323 | 32,102 | 31,337 | 32,210 | 31,790 | 29,998 | 29,795 | 31,670 | 33,281 | 34,028 | 34,718 | 35,985 | 36,827 | 36,918 | 36,940 | 37,476 | 37,191 | 35,339 | 39,047 | 41,102 | 40,711 | 40,685 | 41,793 | |
| EATON VANCE Index: MSCI World Health Care Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI World Health Care Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 1,000,000 | 998,682 | 929,748 | 930,578 | 945,203 | 965,864 | 1,021,719 | 1,024,978 | 1,044,335 | 1,067,108 | 1,096,060 | 1,096,879 | 1,107,685 | 1,122,575 | 1,108,042 | 1,133,096 | 1,132,355 | 1,195,817 | 1,142,206 | 1,118,444 | 1,129,123 | 1,134,461 | 1,149,547 | 1,220,164 | 1,256,240 | 1,281,698 | 1,197,421 | 1,262,679 | 1,160,819 | 1,220,580 | 1,244,670 | 1,255,274 | 1,222,914 | 1,193,620 | 1,274,142 | 1,259,971 | 1,259,593 | 1,258,271 | 1,321,088 | 1,383,514 | 1,430,637 | 1,410,306 | 1,313,907 | 1,266,442 | 1,413,443 | 1,470,475 | 1,450,803 | 1,510,310 | 1,541,354 | 1,520,141 | 1,445,978 | 1,575,398 | 1,624,043 | 1,641,339 | 1,596,701 | 1,635,794 | 1,698,242 | 1,733,170 | 1,785,103 | 1,851,526 | 1,902,892 | 1,803,151 | 1,879,271 | 1,812,183 | 1,945,660 | 1,801,902 | 1,793,858 | 1,880,252 | 1,793,158 | 1,801,999 | 1,744,836 | 1,801,797 | 1,693,263 | 1,626,587 | 1,763,274 | 1,862,377 | 1,840,318 | 1,828,409 | 1,753,803 | 1,810,868 | 1,874,184 | 1,797,438 | 1,854,727 | 1,878,665 | 1,864,194 | 1,803,564 | 1,729,396 | 1,828,560 | 1,909,460 | 1,960,751 | 2,004,918 | 2,052,115 | 1,971,005 | 2,023,648 | 2,061,944 | 2,129,370 | 2,246,342 | 2,179,380 | 2,074,300 | 2,056,189 | 1,931,039 | 2,054,537 | 2,077,635 | 2,029,457 | 1,991,067 | 1,918,694 | 1,946,455 | 1,888,646 | 1,985,798 | 2,004,972 | 2,067,162 | 2,235,131 | 2,217,402 | 2,241,688 | 2,306,469 | 2,115,381 | 2,110,320 | 2,150,733 | 2,258,203 | 2,290,852 | 2,375,934 | |
| EATON VANCE Index: S&P 500 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 1,000,000 | 1,000,189 | 981,944 | 1,018,311 | 1,038,439 | 1,058,134 | 1,100,148 | 1,101,432 | 1,112,743 | 1,128,403 | 1,135,446 | 1,158,793 | 1,162,341 | 1,186,318 | 1,214,001 | 1,251,234 | 1,265,146 | 1,337,581 | 1,288,281 | 1,255,542 | 1,260,359 | 1,290,711 | 1,298,656 | 1,346,983 | 1,390,875 | 1,398,792 | 1,303,184 | 1,329,741 | 1,209,678 | 1,306,616 | 1,348,569 | 1,374,774 | 1,430,438 | 1,339,537 | 1,433,942 | 1,454,551 | 1,431,511 | 1,458,295 | 1,489,881 | 1,543,962 | 1,590,562 | 1,589,938 | 1,459,056 | 1,278,844 | 1,442,783 | 1,511,500 | 1,541,560 | 1,628,481 | 1,745,537 | 1,679,212 | 1,634,556 | 1,813,481 | 1,883,206 | 1,864,193 | 1,915,598 | 1,999,493 | 2,106,204 | 2,120,914 | 2,170,427 | 2,221,985 | 2,289,546 | 2,183,059 | 2,336,009 | 2,319,822 | 2,423,788 | 2,298,364 | 2,229,548 | 2,312,330 | 2,110,690 | 2,114,563 | 1,940,019 | 2,118,897 | 2,032,484 | 1,845,295 | 1,994,693 | 2,106,165 | 1,984,819 | 2,109,533 | 2,058,063 | 2,133,623 | 2,166,925 | 2,176,344 | 2,320,147 | 2,394,681 | 2,356,554 | 2,244,199 | 2,197,011 | 2,397,654 | 2,506,581 | 2,548,702 | 2,684,791 | 2,771,174 | 2,657,986 | 2,789,782 | 2,889,885 | 2,925,062 | 2,996,014 | 3,060,000 | 3,032,250 | 3,210,247 | 3,133,720 | 3,220,986 | 3,178,958 | 2,999,842 | 2,979,501 | 3,167,044 | 3,328,097 | 3,402,789 | 3,471,769 | 3,598,489 | 3,682,743 | 3,691,769 | 3,694,029 | 3,747,593 | 3,719,112 | 3,533,918 | 3,904,720 | 4,110,236 | 4,071,094 | 4,068,511 | 4,179,309 | |
| EATON VANCE Index: MSCI World Health Care Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI World Health Care Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000 | 9,987 | 9,297 | 9,306 | 9,452 | 9,659 | 10,217 | 10,250 | 10,443 | 10,671 | 10,961 | 10,969 | 11,077 | 11,226 | 11,080 | 11,331 | 11,324 | 11,958 | 11,422 | 11,184 | 11,291 | 11,345 | 11,495 | 12,202 | 12,562 | 12,817 | 11,974 | 12,627 | 11,608 | 12,206 | 12,447 | 12,553 | 12,229 | 11,936 | 12,741 | 12,600 | 12,596 | 12,583 | 13,211 | 13,835 | 14,306 | 14,103 | 13,139 | 12,664 | 14,134 | 14,705 | 14,508 | 15,103 | 15,414 | 15,201 | 14,460 | 15,754 | 16,240 | 16,413 | 15,967 | 16,358 | 16,982 | 17,332 | 17,851 | 18,515 | 19,029 | 18,032 | 18,793 | 18,122 | 19,457 | 18,019 | 17,939 | 18,803 | 17,932 | 18,020 | 17,448 | 18,018 | 16,933 | 16,266 | 17,633 | 18,624 | 18,403 | 18,284 | 17,538 | 18,109 | 18,742 | 17,974 | 18,547 | 18,787 | 18,642 | 18,036 | 17,294 | 18,286 | 19,095 | 19,608 | 20,049 | 20,521 | 19,710 | 20,236 | 20,619 | 21,294 | 22,463 | 21,794 | 20,743 | 20,562 | 19,310 | 20,545 | 20,776 | 20,295 | 19,911 | 19,187 | 19,465 | 18,886 | 19,858 | 20,050 | 20,672 | 22,351 | 22,174 | 22,417 | 23,065 | 21,154 | 21,103 | 21,507 | 22,582 | 22,909 | 23,759 | |
| EATON VANCE Index: S&P 500 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 10,002 | $ 9,819 | $ 10,183 | $ 10,384 | $ 10,581 | $ 11,001 | $ 11,014 | $ 11,127 | $ 11,284 | $ 11,354 | $ 11,588 | $ 11,623 | $ 11,863 | $ 12,140 | $ 12,512 | $ 12,651 | $ 13,376 | $ 12,883 | $ 12,555 | $ 12,604 | $ 12,907 | $ 12,987 | $ 13,470 | $ 13,909 | $ 13,988 | $ 13,032 | $ 13,297 | $ 12,097 | $ 13,066 | $ 13,486 | $ 13,748 | $ 14,304 | $ 13,395 | $ 14,339 | $ 14,546 | $ 14,315 | $ 14,583 | $ 14,899 | $ 15,440 | $ 15,906 | $ 15,899 | $ 14,591 | $ 12,788 | $ 14,428 | $ 15,115 | $ 15,416 | $ 16,285 | $ 17,455 | $ 16,792 | $ 16,346 | $ 18,135 | $ 18,832 | $ 18,642 | $ 19,156 | $ 19,995 | $ 21,062 | $ 21,209 | $ 21,704 | $ 22,220 | $ 22,895 | $ 21,831 | $ 23,360 | $ 23,198 | $ 24,238 | $ 22,984 | $ 22,295 | $ 23,123 | $ 21,107 | $ 21,146 | $ 19,400 | $ 21,189 | $ 20,325 | $ 18,453 | $ 19,947 | $ 21,062 | $ 19,848 | $ 21,095 | $ 20,581 | $ 21,336 | $ 21,669 | $ 21,763 | $ 23,201 | $ 23,947 | $ 23,566 | $ 22,442 | $ 21,970 | $ 23,977 | $ 25,066 | $ 25,487 | $ 26,848 | $ 27,712 | $ 26,580 | $ 27,898 | $ 28,899 | $ 29,251 | $ 29,960 | $ 30,600 | $ 30,323 | $ 32,102 | $ 31,337 | $ 32,210 | $ 31,790 | $ 29,998 | $ 29,795 | $ 31,670 | $ 33,281 | $ 34,028 | $ 34,718 | $ 35,985 | $ 36,827 | $ 36,918 | $ 36,940 | $ 37,476 | $ 37,191 | $ 35,339 | $ 39,047 | $ 41,102 | $ 40,711 | $ 40,685 | $ 41,793 | |