Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001527469-19-000007-index-headers.html | 2019-02-27 08:26:40 | |
| 0001527469-19-000007-index.html | 2019-02-27 08:26:40 | |
| 0001527469-19-000007.txt | 2019-02-27 08:26:40 | |
 0001527469-19-000007-xbrl.zip | 941439 | 2019-02-27 08:26:40 |
| ahl-20181231.xml | 14052230 | 2019-02-27 08:26:40 |
| ahl-20181231.xsd | 138821 | 2019-02-27 08:26:40 |
| ahl-20181231_cal.xml | 245679 | 2019-02-27 08:26:40 |
| ahl-20181231_def.xml | 1490497 | 2019-02-27 08:26:40 |
| ahl-20181231_lab.xml | 1929128 | 2019-02-27 08:26:40 |
| ahl-20181231_pre.xml | 1668878 | 2019-02-27 08:26:40 |
| ath10k2018.htm | 8548534 | 2019-02-27 08:26:40 |
| FilingSummary.xml | 84777 | 2019-02-27 08:26:40 |
| Financial_Report.xlsx | 278072 | 2019-02-27 08:26:40 |
| q42018exhibit1012.htm | 82328 | 2019-02-27 08:26:40 |
| q42018exhibit10324.htm | 61692 | 2019-02-27 08:26:40 |
| q42018exhibit10328.htm | 61892 | 2019-02-27 08:26:40 |
| q42018exhibit211.htm | 27384 | 2019-02-27 08:26:40 |
| q42018exhibit231.htm | 2510 | 2019-02-27 08:26:40 |
| q42018exhibit311.htm | 15068 | 2019-02-27 08:26:40 |
| q42018exhibit312.htm | 15212 | 2019-02-27 08:26:40 |
| q42018exhibit321.htm | 6041 | 2019-02-27 08:26:40 |
| q42018exhibit322.htm | 6112 | 2019-02-27 08:26:40 |
| R1.htm | 46472 | 2019-02-27 08:26:40 |
| R10.htm | 124468 | 2019-02-27 08:26:40 |
| R100.htm | 35372 | 2019-02-27 08:26:40 |
| R101.htm | 19953 | 2019-02-27 08:26:40 |
| R102.htm | 93372 | 2019-02-27 08:26:40 |
| R103.htm | 91687 | 2019-02-27 08:26:40 |
| R104.htm | 10824 | 2019-02-27 08:26:40 |
| R105.htm | 23184 | 2019-02-27 08:26:40 |
| R106.htm | 55417 | 2019-02-27 08:26:40 |
| R107.htm | 11864 | 2019-02-27 08:26:40 |
| R108.htm | 17755 | 2019-02-27 08:26:40 |
| R109.htm | 45513 | 2019-02-27 08:26:40 |
| R11.htm | 236843 | 2019-02-27 08:26:40 |
| R110.htm | 11036 | 2019-02-27 08:26:40 |
| R111.htm | 43312 | 2019-02-27 08:26:40 |
| R112.htm | 8984 | 2019-02-27 08:26:40 |
| R113.htm | 16170 | 2019-02-27 08:26:40 |
| R114.htm | 20775 | 2019-02-27 08:26:40 |
| R115.htm | 34626 | 2019-02-27 08:26:40 |
| R116.htm | 47641 | 2019-02-27 08:26:40 |
| R117.htm | 13293 | 2019-02-27 08:26:40 |
| R118.htm | 9308 | 2019-02-27 08:26:40 |
| R119.htm | 44572 | 2019-02-27 08:26:40 |
| R12.htm | 723176 | 2019-02-27 08:26:40 |
| R120.htm | 9754 | 2019-02-27 08:26:40 |
| R121.htm | 12779 | 2019-02-27 08:26:40 |
| R122.htm | 131142 | 2019-02-27 08:26:40 |
| R123.htm | 22918 | 2019-02-27 08:26:40 |
| R124.htm | 24300 | 2019-02-27 08:26:40 |
| R125.htm | 26481 | 2019-02-27 08:26:40 |
| R126.htm | 36203 | 2019-02-27 08:26:40 |
| R127.htm | 18700 | 2019-02-27 08:26:40 |
| R128.htm | 15887 | 2019-02-27 08:26:40 |
| R129.htm | 9502 | 2019-02-27 08:26:40 |
| R13.htm | 181255 | 2019-02-27 08:26:40 |
| R130.htm | 4109 | 2019-02-27 08:26:40 |
| R131.htm | 22127 | 2019-02-27 08:26:40 |
| R132.htm | 10767 | 2019-02-27 08:26:40 |
| R133.htm | 92997 | 2019-02-27 08:26:40 |
| R134.htm | 249514 | 2019-02-27 08:26:40 |
| R135.htm | 74651 | 2019-02-27 08:26:40 |
| R136.htm | 108635 | 2019-02-27 08:26:40 |
| R137.htm | 50378 | 2019-02-27 08:26:40 |
| R138.htm | 65952 | 2019-02-27 08:26:40 |
| R139.htm | 37834 | 2019-02-27 08:26:40 |
| R14.htm | 12657 | 2019-02-27 08:26:40 |
| R140.htm | 31916 | 2019-02-27 08:26:40 |
| R141.htm | 28733 | 2019-02-27 08:26:40 |
| R142.htm | 16940 | 2019-02-27 08:26:40 |
| R15.htm | 1367830 | 2019-02-27 08:26:40 |
| R16.htm | 123368 | 2019-02-27 08:26:40 |
| R17.htm | 63128 | 2019-02-27 08:26:40 |
| R18.htm | 67493 | 2019-02-27 08:26:40 |
| R19.htm | 12183 | 2019-02-27 08:26:40 |
| R2.htm | 129126 | 2019-02-27 08:26:40 |
| R20.htm | 96160 | 2019-02-27 08:26:40 |
| R21.htm | 186401 | 2019-02-27 08:26:40 |
| R22.htm | 153546 | 2019-02-27 08:26:40 |
| R23.htm | 75000 | 2019-02-27 08:26:40 |
| R24.htm | 135363 | 2019-02-27 08:26:40 |
| R25.htm | 85294 | 2019-02-27 08:26:40 |
| R26.htm | 66251 | 2019-02-27 08:26:40 |
| R27.htm | 46386 | 2019-02-27 08:26:40 |
| R28.htm | 153821 | 2019-02-27 08:26:40 |
| R29.htm | 724177 | 2019-02-27 08:26:40 |
| R3.htm | 76170 | 2019-02-27 08:26:40 |
| R30.htm | 63257 | 2019-02-27 08:26:40 |
| R31.htm | 21244 | 2019-02-27 08:26:40 |
| R32.htm | 190985 | 2019-02-27 08:26:40 |
| R33.htm | 707970 | 2019-02-27 08:26:40 |
| R34.htm | 744358 | 2019-02-27 08:26:40 |
| R35.htm | 209684 | 2019-02-27 08:26:40 |
| R36.htm | 36606 | 2019-02-27 08:26:40 |
| R37.htm | 2016848 | 2019-02-27 08:26:40 |
| R38.htm | 117059 | 2019-02-27 08:26:40 |
| R39.htm | 123116 | 2019-02-27 08:26:40 |
| R4.htm | 94155 | 2019-02-27 08:26:40 |
| R40.htm | 66488 | 2019-02-27 08:26:40 |
| R41.htm | 88742 | 2019-02-27 08:26:40 |
| R42.htm | 166122 | 2019-02-27 08:26:40 |
| R43.htm | 154202 | 2019-02-27 08:26:40 |
| R44.htm | 74495 | 2019-02-27 08:26:40 |
| R45.htm | 139287 | 2019-02-27 08:26:40 |
| R46.htm | 66158 | 2019-02-27 08:26:40 |
| R47.htm | 36633 | 2019-02-27 08:26:40 |
| R48.htm | 22877 | 2019-02-27 08:26:40 |
| R49.htm | 120027 | 2019-02-27 08:26:40 |
| R5.htm | 31749 | 2019-02-27 08:26:40 |
| R50.htm | 954603 | 2019-02-27 08:26:40 |
| R51.htm | 48574 | 2019-02-27 08:26:40 |
| R52.htm | 323069 | 2019-02-27 08:26:40 |
| R53.htm | 67195 | 2019-02-27 08:26:40 |
| R54.htm | 37910 | 2019-02-27 08:26:40 |
| R55.htm | 81340 | 2019-02-27 08:26:40 |
| R56.htm | 24854 | 2019-02-27 08:26:40 |
| R57.htm | 27313 | 2019-02-27 08:26:40 |
| R58.htm | 37602 | 2019-02-27 08:26:40 |
| R59.htm | 39479 | 2019-02-27 08:26:40 |
| R6.htm | 32078 | 2019-02-27 08:26:40 |
| R60.htm | 19579 | 2019-02-27 08:26:40 |
| R61.htm | 29869 | 2019-02-27 08:26:40 |
| R62.htm | 13726 | 2019-02-27 08:26:40 |
| R63.htm | 81244 | 2019-02-27 08:26:40 |
| R64.htm | 14532 | 2019-02-27 08:26:40 |
| R65.htm | 20160 | 2019-02-27 08:26:40 |
| R66.htm | 16010 | 2019-02-27 08:26:40 |
| R67.htm | 46201 | 2019-02-27 08:26:40 |
| R68.htm | 15656 | 2019-02-27 08:26:40 |
| R69.htm | 17623 | 2019-02-27 08:26:40 |
| R7.htm | 36000 | 2019-02-27 08:26:40 |
| R70.htm | 24006 | 2019-02-27 08:26:40 |
| R71.htm | 49819 | 2019-02-27 08:26:40 |
| R72.htm | 20867 | 2019-02-27 08:26:40 |
| R73.htm | 34717 | 2019-02-27 08:26:40 |
| R74.htm | 32522 | 2019-02-27 08:26:40 |
| R75.htm | 249478 | 2019-02-27 08:26:40 |
| R76.htm | 22361 | 2019-02-27 08:26:40 |
| R77.htm | 183972 | 2019-02-27 08:26:40 |
| R78.htm | 91864 | 2019-02-27 08:26:40 |
| R79.htm | 21538 | 2019-02-27 08:26:40 |
| R8.htm | 201309 | 2019-02-27 08:26:40 |
| R80.htm | 90144 | 2019-02-27 08:26:40 |
| R81.htm | 13096 | 2019-02-27 08:26:40 |
| R82.htm | 23233 | 2019-02-27 08:26:40 |
| R83.htm | 56682 | 2019-02-27 08:26:40 |
| R84.htm | 10231 | 2019-02-27 08:26:40 |
| R85.htm | 13190 | 2019-02-27 08:26:40 |
| R86.htm | 9893 | 2019-02-27 08:26:40 |
| R87.htm | 49899 | 2019-02-27 08:26:40 |
| R88.htm | 14380 | 2019-02-27 08:26:40 |
| R89.htm | 37818 | 2019-02-27 08:26:40 |
| R9.htm | 90507 | 2019-02-27 08:26:40 |
| R90.htm | 24887 | 2019-02-27 08:26:40 |
| R91.htm | 22754 | 2019-02-27 08:26:40 |
| R92.htm | 10447 | 2019-02-27 08:26:40 |
| R93.htm | 42348 | 2019-02-27 08:26:40 |
| R94.htm | 56951 | 2019-02-27 08:26:40 |
| R95.htm | 36859 | 2019-02-27 08:26:40 |
| R96.htm | 20194 | 2019-02-27 08:26:40 |
| R97.htm | 24060 | 2019-02-27 08:26:40 |
| R98.htm | 25301 | 2019-02-27 08:26:40 |
| R99.htm | 53377 | 2019-02-27 08:26:40 |
| R9999.htm | 4108 | 2019-02-27 08:26:40 |
| report.css | 2768 | 2019-02-27 08:26:40 |
| Show.js | 1086 | 2019-02-27 08:26:40 |