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| 0000947484-20-000092-index.html | 2020-10-29 16:18:20 | |
| 0000947484-20-000092.txt | 2020-10-29 16:18:20 | |
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| acgl-20201029.htm | 46478 | 2020-10-29 16:18:20 |
| acgl-20201029.xsd | 2938 | 2020-10-29 16:18:20 |
| acgl-20201029_cal.xml | 802 | 2020-10-29 16:18:20 |
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| acgl-20201029_lab.xml | 32923 | 2020-10-29 16:18:20 |
| acgl-20201029_pre.xml | 17731 | 2020-10-29 16:18:20 |
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| ex-991release93020.htm | 415752 | 2020-10-29 16:18:20 |
| ex-992supplement93020.htm | 3388966 | 2020-10-29 16:18:20 |
| FilingSummary.xml | 1924 | 2020-10-29 16:18:20 |
| Financial_Report.xlsx | 5719 | 2020-10-29 16:18:20 |
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| R1.htm | 48199 | 2020-10-29 16:18:20 |
| report.css | 2767 | 2020-10-29 16:18:20 |
| Show.js | 1085 | 2020-10-29 16:18:20 |