Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000883237-18-000026-index-headers.html | 2018-02-26 21:00:52 | |
| 0000883237-18-000026-index.html | 2018-02-26 21:00:52 | |
| 0000883237-18-000026.txt | 2018-02-26 21:00:52 | |
 0000883237-18-000026-xbrl.zip | 348010 | 2018-02-26 21:00:52 |
| FilingSummary.xml | 51125 | 2018-02-26 21:00:52 |
| Financial_Report.xlsx | 125602 | 2018-02-26 21:00:52 |
| R1.htm | 30002 | 2018-02-26 21:00:52 |
| R10.htm | 7096 | 2018-02-26 21:00:52 |
| R11.htm | 62780 | 2018-02-26 21:00:52 |
| R12.htm | 61304 | 2018-02-26 21:00:52 |
| R13.htm | 52523 | 2018-02-26 21:00:52 |
| R14.htm | 74290 | 2018-02-26 21:00:52 |
| R15.htm | 96549 | 2018-02-26 21:00:52 |
| R16.htm | 19050 | 2018-02-26 21:00:52 |
| R17.htm | 106467 | 2018-02-26 21:00:52 |
| R18.htm | 23781 | 2018-02-26 21:00:52 |
| R19.htm | 19390 | 2018-02-26 21:00:52 |
| R2.htm | 88520 | 2018-02-26 21:00:52 |
| R20.htm | 18508 | 2018-02-26 21:00:52 |
| R21.htm | 30053 | 2018-02-26 21:00:52 |
| R22.htm | 7552 | 2018-02-26 21:00:52 |
| R23.htm | 55189 | 2018-02-26 21:00:52 |
| R24.htm | 7344 | 2018-02-26 21:00:52 |
| R25.htm | 47479 | 2018-02-26 21:00:52 |
| R26.htm | 23503 | 2018-02-26 21:00:52 |
| R27.htm | 199424 | 2018-02-26 21:00:52 |
| R28.htm | 10099 | 2018-02-26 21:00:52 |
| R29.htm | 52444 | 2018-02-26 21:00:52 |
| R3.htm | 21229 | 2018-02-26 21:00:52 |
| R30.htm | 134531 | 2018-02-26 21:00:52 |
| R31.htm | 56049 | 2018-02-26 21:00:52 |
| R32.htm | 47617 | 2018-02-26 21:00:52 |
| R33.htm | 70345 | 2018-02-26 21:00:52 |
| R34.htm | 199398 | 2018-02-26 21:00:52 |
| R35.htm | 18758 | 2018-02-26 21:00:52 |
| R36.htm | 101806 | 2018-02-26 21:00:52 |
| R37.htm | 11657 | 2018-02-26 21:00:52 |
| R38.htm | 29479 | 2018-02-26 21:00:52 |
| R39.htm | 40994 | 2018-02-26 21:00:52 |
| R4.htm | 87606 | 2018-02-26 21:00:52 |
| R40.htm | 49643 | 2018-02-26 21:00:52 |
| R41.htm | 24404 | 2018-02-26 21:00:52 |
| R42.htm | 301923 | 2018-02-26 21:00:52 |
| R43.htm | 52308 | 2018-02-26 21:00:52 |
| R44.htm | 31789 | 2018-02-26 21:00:52 |
| R45.htm | 58943 | 2018-02-26 21:00:52 |
| R46.htm | 50269 | 2018-02-26 21:00:52 |
| R47.htm | 18692 | 2018-02-26 21:00:52 |
| R48.htm | 11923 | 2018-02-26 21:00:52 |
| R49.htm | 13607 | 2018-02-26 21:00:52 |
| R5.htm | 22930 | 2018-02-26 21:00:52 |
| R50.htm | 19211 | 2018-02-26 21:00:52 |
| R51.htm | 17174 | 2018-02-26 21:00:52 |
| R52.htm | 17148 | 2018-02-26 21:00:52 |
| R53.htm | 33426 | 2018-02-26 21:00:52 |
| R54.htm | 20284 | 2018-02-26 21:00:52 |
| R55.htm | 52135 | 2018-02-26 21:00:52 |
| R56.htm | 12802 | 2018-02-26 21:00:52 |
| R57.htm | 16680 | 2018-02-26 21:00:52 |
| R58.htm | 22426 | 2018-02-26 21:00:52 |
| R59.htm | 39900 | 2018-02-26 21:00:52 |
| R6.htm | 7770 | 2018-02-26 21:00:52 |
| R60.htm | 32639 | 2018-02-26 21:00:52 |
| R61.htm | 25543 | 2018-02-26 21:00:52 |
| R62.htm | 55457 | 2018-02-26 21:00:52 |
| R63.htm | 22133 | 2018-02-26 21:00:52 |
| R64.htm | 32253 | 2018-02-26 21:00:52 |
| R65.htm | 95887 | 2018-02-26 21:00:52 |
| R66.htm | 21056 | 2018-02-26 21:00:52 |
| R67.htm | 12795 | 2018-02-26 21:00:52 |
| R68.htm | 84804 | 2018-02-26 21:00:52 |
| R69.htm | 5539 | 2018-02-26 21:00:52 |
| R7.htm | 110630 | 2018-02-26 21:00:52 |
| R70.htm | 26348 | 2018-02-26 21:00:52 |
| R71.htm | 27646 | 2018-02-26 21:00:52 |
| R72.htm | 17922 | 2018-02-26 21:00:52 |
| R73.htm | 35079 | 2018-02-26 21:00:52 |
| R74.htm | 10430 | 2018-02-26 21:00:52 |
| R75.htm | 14471 | 2018-02-26 21:00:52 |
| R76.htm | 31893 | 2018-02-26 21:00:52 |
| R77.htm | 36398 | 2018-02-26 21:00:52 |
| R78.htm | 9086 | 2018-02-26 21:00:52 |
| R79.htm | 33072 | 2018-02-26 21:00:52 |
| R8.htm | 7141 | 2018-02-26 21:00:52 |
| R80.htm | 9690 | 2018-02-26 21:00:52 |
| R81.htm | 55895 | 2018-02-26 21:00:52 |
| R82.htm | 26825 | 2018-02-26 21:00:52 |
| R83.htm | 57784 | 2018-02-26 21:00:52 |
| R84.htm | 17662 | 2018-02-26 21:00:52 |
| R9.htm | 154985 | 2018-02-26 21:00:52 |
| report.css | 2768 | 2018-02-26 21:00:52 |
| Show.js | 1411 | 2018-02-26 21:00:52 |
 virtuslogo10k.jpg | 14568 | 2018-02-26 21:00:52 |
| vrts-20171231.xml | 2483767 | 2018-02-26 21:00:52 |
| vrts-20171231.xsd | 73294 | 2018-02-26 21:00:52 |
| vrts-20171231_cal.xml | 166351 | 2018-02-26 21:00:52 |
| vrts-20171231_def.xml | 507618 | 2018-02-26 21:00:52 |
| vrts-20171231_lab.xml | 1102647 | 2018-02-26 21:00:52 |
| vrts-20171231_pre.xml | 689246 | 2018-02-26 21:00:52 |
| vrts1231201710-k.htm | 3179106 | 2018-02-26 21:00:52 |
| vrts12312017ex-211.htm | 33697 | 2018-02-26 21:00:52 |
| vrts12312017ex-23.htm | 692763 | 2018-02-26 21:00:52 |
| vrts12312017ex-231.htm | 2816 | 2018-02-26 21:00:52 |
| vrts12312017ex-311.htm | 8454 | 2018-02-26 21:00:52 |
| vrts12312017ex-312.htm | 8441 | 2018-02-26 21:00:52 |
| vrts12312017ex-321.htm | 8360 | 2018-02-26 21:00:52 |