Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-17-324571-index-headers.html | 2017-10-30 13:23:17 | |
| 0001193125-17-324571-index.html | 2017-10-30 13:23:17 | |
| 0001193125-17-324571.txt | 2017-10-30 13:23:17 | |
 0001193125-17-324571-xbrl.zip | 219653 | 2017-10-30 13:23:17 |
| ajg-20170930.xml | 1656450 | 2017-10-30 13:23:17 |
| ajg-20170930.xsd | 101008 | 2017-10-30 13:23:17 |
| ajg-20170930_cal.xml | 98490 | 2017-10-30 13:23:17 |
| ajg-20170930_def.xml | 337764 | 2017-10-30 13:23:17 |
| ajg-20170930_lab.xml | 689816 | 2017-10-30 13:23:17 |
| ajg-20170930_pre.xml | 509672 | 2017-10-30 13:23:17 |
| d431119d10q.htm | 1459829 | 2017-10-30 13:23:17 |
| d431119dex151.htm | 3811 | 2017-10-30 13:23:17 |
| d431119dex311.htm | 9036 | 2017-10-30 13:23:17 |
| d431119dex312.htm | 9319 | 2017-10-30 13:23:17 |
| d431119dex321.htm | 2879 | 2017-10-30 13:23:17 |
| d431119dex322.htm | 2984 | 2017-10-30 13:23:17 |
| FilingSummary.xml | 49659 | 2017-10-30 13:23:17 |
| Financial_Report.xlsx | 97232 | 2017-10-30 13:23:17 |
| R1.htm | 21365 | 2017-10-30 13:23:17 |
| R10.htm | 27898 | 2017-10-30 13:23:17 |
| R11.htm | 87272 | 2017-10-30 13:23:17 |
| R12.htm | 11132 | 2017-10-30 13:23:17 |
| R13.htm | 55327 | 2017-10-30 13:23:17 |
| R14.htm | 41210 | 2017-10-30 13:23:17 |
| R15.htm | 19925 | 2017-10-30 13:23:17 |
| R16.htm | 46703 | 2017-10-30 13:23:17 |
| R17.htm | 12817 | 2017-10-30 13:23:17 |
| R18.htm | 16882 | 2017-10-30 13:23:17 |
| R19.htm | 16120 | 2017-10-30 13:23:17 |
| R2.htm | 60466 | 2017-10-30 13:23:17 |
| R20.htm | 60958 | 2017-10-30 13:23:17 |
| R21.htm | 56755 | 2017-10-30 13:23:17 |
| R22.htm | 14573 | 2017-10-30 13:23:17 |
| R23.htm | 30526 | 2017-10-30 13:23:17 |
| R24.htm | 51646 | 2017-10-30 13:23:17 |
| R25.htm | 79609 | 2017-10-30 13:23:17 |
| R26.htm | 9910 | 2017-10-30 13:23:17 |
| R27.htm | 58567 | 2017-10-30 13:23:17 |
| R28.htm | 38751 | 2017-10-30 13:23:17 |
| R29.htm | 18898 | 2017-10-30 13:23:17 |
| R3.htm | 23029 | 2017-10-30 13:23:17 |
| R30.htm | 43104 | 2017-10-30 13:23:17 |
| R31.htm | 15723 | 2017-10-30 13:23:17 |
| R32.htm | 60410 | 2017-10-30 13:23:17 |
| R33.htm | 45331 | 2017-10-30 13:23:17 |
| R34.htm | 12711 | 2017-10-30 13:23:17 |
| R35.htm | 28873 | 2017-10-30 13:23:17 |
| R36.htm | 7874 | 2017-10-30 13:23:17 |
| R37.htm | 18173 | 2017-10-30 13:23:17 |
| R38.htm | 46478 | 2017-10-30 13:23:17 |
| R39.htm | 21196 | 2017-10-30 13:23:17 |
| R4.htm | 72581 | 2017-10-30 13:23:17 |
| R40.htm | 95982 | 2017-10-30 13:23:17 |
| R41.htm | 65591 | 2017-10-30 13:23:17 |
| R42.htm | 10914 | 2017-10-30 13:23:17 |
| R43.htm | 12706 | 2017-10-30 13:23:17 |
| R44.htm | 4136 | 2017-10-30 13:23:17 |
| R45.htm | 32615 | 2017-10-30 13:23:17 |
| R46.htm | 20822 | 2017-10-30 13:23:17 |
| R47.htm | 16740 | 2017-10-30 13:23:17 |
| R48.htm | 15031 | 2017-10-30 13:23:17 |
| R49.htm | 88087 | 2017-10-30 13:23:17 |
| R5.htm | 6885 | 2017-10-30 13:23:17 |
| R50.htm | 98085 | 2017-10-30 13:23:17 |
| R51.htm | 34252 | 2017-10-30 13:23:17 |
| R52.htm | 19400 | 2017-10-30 13:23:17 |
| R53.htm | 5103 | 2017-10-30 13:23:17 |
| R54.htm | 59773 | 2017-10-30 13:23:17 |
| R55.htm | 11974 | 2017-10-30 13:23:17 |
| R56.htm | 43655 | 2017-10-30 13:23:17 |
| R57.htm | 37082 | 2017-10-30 13:23:17 |
| R58.htm | 33931 | 2017-10-30 13:23:17 |
| R59.htm | 105605 | 2017-10-30 13:23:17 |
| R6.htm | 96673 | 2017-10-30 13:23:17 |
| R60.htm | 24073 | 2017-10-30 13:23:17 |
| R61.htm | 15525 | 2017-10-30 13:23:17 |
| R62.htm | 14350 | 2017-10-30 13:23:17 |
| R63.htm | 26370 | 2017-10-30 13:23:17 |
| R64.htm | 28770 | 2017-10-30 13:23:17 |
| R65.htm | 9056 | 2017-10-30 13:23:17 |
| R66.htm | 50078 | 2017-10-30 13:23:17 |
| R67.htm | 53694 | 2017-10-30 13:23:17 |
| R68.htm | 24326 | 2017-10-30 13:23:17 |
| R69.htm | 5611 | 2017-10-30 13:23:17 |
| R7.htm | 55526 | 2017-10-30 13:23:17 |
| R70.htm | 13283 | 2017-10-30 13:23:17 |
| R71.htm | 4489 | 2017-10-30 13:23:17 |
| R72.htm | 18258 | 2017-10-30 13:23:17 |
| R73.htm | 11780 | 2017-10-30 13:23:17 |
| R74.htm | 4127 | 2017-10-30 13:23:17 |
| R75.htm | 22279 | 2017-10-30 13:23:17 |
| R8.htm | 7666 | 2017-10-30 13:23:17 |
| R9.htm | 7912 | 2017-10-30 13:23:17 |
| report.css | 2767 | 2017-10-30 13:23:17 |
| Show.js | 1410 | 2017-10-30 13:23:17 |