Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001569391-13-000009-index-headers.html | 2013-11-12 17:10:28 | |
| 0001569391-13-000009-index.html | 2013-11-12 17:10:28 | |
| 0001569391-13-000009.txt | 2013-11-12 17:10:28 | |
 0001569391-13-000009-xbrl.zip | 399965 | 2013-11-12 17:10:28 |
| FilingSummary.xml | 52906 | 2013-11-12 17:10:28 |
| Financial_Report.xls | 2863491 | 2013-11-12 17:10:28 |
| Financial_Report.xlsx | 376980 | 2013-11-12 17:10:28 |
| kcg-20130930.xml | 3363722 | 2013-11-12 17:10:28 |
| kcg-20130930.xsd | 98382 | 2013-11-12 17:10:28 |
| kcg-20130930_cal.xml | 163489 | 2013-11-12 17:10:28 |
| kcg-20130930_def.xml | 545360 | 2013-11-12 17:10:28 |
| kcg-20130930_lab.xml | 1134401 | 2013-11-12 17:10:28 |
| kcg-20130930_pre.xml | 711015 | 2013-11-12 17:10:28 |
| kcg201393010q.htm | 2278914 | 2013-11-12 17:10:28 |
| kcgexhibit101q313.htm | 35724 | 2013-11-12 17:10:28 |
| kcgexhibit102q313.htm | 37057 | 2013-11-12 17:10:28 |
| kcgexhibit311q313.htm | 13083 | 2013-11-12 17:10:28 |
| kcgexhibit312q313.htm | 13230 | 2013-11-12 17:10:28 |
| kcgexhibit321q313.htm | 6410 | 2013-11-12 17:10:28 |
| kcgexhibit322q313.htm | 6411 | 2013-11-12 17:10:28 |
| R1.htm | 27368 | 2013-11-12 17:10:28 |
| R10.htm | 86033 | 2013-11-12 17:10:28 |
| R11.htm | 34827 | 2013-11-12 17:10:28 |
| R12.htm | 11324 | 2013-11-12 17:10:28 |
| R13.htm | 430004 | 2013-11-12 17:10:28 |
| R14.htm | 22696 | 2013-11-12 17:10:28 |
| R15.htm | 22228 | 2013-11-12 17:10:28 |
| R16.htm | 20135 | 2013-11-12 17:10:28 |
| R17.htm | 93168 | 2013-11-12 17:10:28 |
| R18.htm | 81799 | 2013-11-12 17:10:28 |
| R19.htm | 126615 | 2013-11-12 17:10:28 |
| R2.htm | 129685 | 2013-11-12 17:10:28 |
| R20.htm | 52761 | 2013-11-12 17:10:28 |
| R21.htm | 34585 | 2013-11-12 17:10:28 |
| R22.htm | 53825 | 2013-11-12 17:10:28 |
| R23.htm | 6300 | 2013-11-12 17:10:28 |
| R24.htm | 80522 | 2013-11-12 17:10:28 |
| R25.htm | 17159 | 2013-11-12 17:10:28 |
| R26.htm | 64382 | 2013-11-12 17:10:28 |
| R27.htm | 16109 | 2013-11-12 17:10:28 |
| R28.htm | 172720 | 2013-11-12 17:10:28 |
| R29.htm | 118269 | 2013-11-12 17:10:28 |
| R3.htm | 24552 | 2013-11-12 17:10:28 |
| R30.htm | 53422 | 2013-11-12 17:10:28 |
| R31.htm | 32007 | 2013-11-12 17:10:28 |
| R32.htm | 9849 | 2013-11-12 17:10:28 |
| R33.htm | 422133 | 2013-11-12 17:10:28 |
| R34.htm | 21773 | 2013-11-12 17:10:28 |
| R35.htm | 21528 | 2013-11-12 17:10:28 |
| R36.htm | 20386 | 2013-11-12 17:10:28 |
| R37.htm | 93757 | 2013-11-12 17:10:28 |
| R38.htm | 54909 | 2013-11-12 17:10:28 |
| R39.htm | 132364 | 2013-11-12 17:10:28 |
| R4.htm | 171943 | 2013-11-12 17:10:28 |
| R40.htm | 38633 | 2013-11-12 17:10:28 |
| R41.htm | 25381 | 2013-11-12 17:10:28 |
| R42.htm | 50150 | 2013-11-12 17:10:28 |
| R43.htm | 47677 | 2013-11-12 17:10:28 |
| R44.htm | 57491 | 2013-11-12 17:10:28 |
| R45.htm | 50890 | 2013-11-12 17:10:28 |
| R46.htm | 72074 | 2013-11-12 17:10:28 |
| R47.htm | 23157 | 2013-11-12 17:10:28 |
| R48.htm | 55889 | 2013-11-12 17:10:28 |
| R49.htm | 22391 | 2013-11-12 17:10:28 |
| R5.htm | 17735 | 2013-11-12 17:10:28 |
| R50.htm | 13518 | 2013-11-12 17:10:28 |
| R51.htm | 10382 | 2013-11-12 17:10:28 |
| R52.htm | 15094 | 2013-11-12 17:10:28 |
| R53.htm | 41061 | 2013-11-12 17:10:28 |
| R54.htm | 51221 | 2013-11-12 17:10:28 |
| R55.htm | 11438 | 2013-11-12 17:10:28 |
| R56.htm | 110770 | 2013-11-12 17:10:28 |
| R57.htm | 6898 | 2013-11-12 17:10:28 |
| R58.htm | 13330 | 2013-11-12 17:10:28 |
| R59.htm | 39319 | 2013-11-12 17:10:28 |
| R6.htm | 87148 | 2013-11-12 17:10:28 |
| R60.htm | 27134 | 2013-11-12 17:10:28 |
| R61.htm | 64484 | 2013-11-12 17:10:28 |
| R62.htm | 15855 | 2013-11-12 17:10:28 |
| R63.htm | 4942 | 2013-11-12 17:10:28 |
| R64.htm | 14656 | 2013-11-12 17:10:28 |
| R65.htm | 23313 | 2013-11-12 17:10:28 |
| R66.htm | 25989 | 2013-11-12 17:10:28 |
| R67.htm | 18111 | 2013-11-12 17:10:28 |
| R68.htm | 11003 | 2013-11-12 17:10:28 |
| R69.htm | 34898 | 2013-11-12 17:10:28 |
| R7.htm | 203121 | 2013-11-12 17:10:28 |
| R70.htm | 11754 | 2013-11-12 17:10:28 |
| R71.htm | 7413 | 2013-11-12 17:10:28 |
| R72.htm | 16166 | 2013-11-12 17:10:28 |
| R73.htm | 47605 | 2013-11-12 17:10:28 |
| R74.htm | 137598 | 2013-11-12 17:10:28 |
| R75.htm | 16420 | 2013-11-12 17:10:28 |
| R76.htm | 39341 | 2013-11-12 17:10:28 |
| R77.htm | 9447 | 2013-11-12 17:10:28 |
| R78.htm | 42585 | 2013-11-12 17:10:28 |
| R79.htm | 9987 | 2013-11-12 17:10:28 |
| R8.htm | 16375 | 2013-11-12 17:10:28 |
| R80.htm | 63515 | 2013-11-12 17:10:28 |
| R81.htm | 31453 | 2013-11-12 17:10:28 |
| R82.htm | 35700 | 2013-11-12 17:10:28 |
| R83.htm | 35699 | 2013-11-12 17:10:28 |
| R84.htm | 10971 | 2013-11-12 17:10:28 |
| R85.htm | 33953 | 2013-11-12 17:10:28 |
| R86.htm | 44322 | 2013-11-12 17:10:28 |
| R87.htm | 21090 | 2013-11-12 17:10:28 |
| R88.htm | 8637 | 2013-11-12 17:10:28 |
| R89.htm | 35292 | 2013-11-12 17:10:28 |
| R9.htm | 130565 | 2013-11-12 17:10:28 |
| R90.htm | 8014 | 2013-11-12 17:10:28 |
| R91.htm | 56810 | 2013-11-12 17:10:28 |
| R92.htm | 14367 | 2013-11-12 17:10:28 |
| R93.htm | 6933 | 2013-11-12 17:10:28 |
| R94.htm | 37492 | 2013-11-12 17:10:28 |
| R95.htm | 7841 | 2013-11-12 17:10:28 |
| R96.htm | 22108 | 2013-11-12 17:10:28 |
| R97.htm | 38260 | 2013-11-12 17:10:28 |
| report.css | 2740 | 2013-11-12 17:10:28 |
| Show.js | 1410 | 2013-11-12 17:10:28 |