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| 0001104659-22-063557-index.html | 2022-05-23 06:01:10 | |
| 0001104659-22-063557.txt | 2022-05-23 06:01:10 | |
 0001104659-22-063557-xbrl.zip | 36845 | 2022-05-23 06:01:10 |
| arch-20220518.xsd | 3033 | 2022-05-23 06:01:10 |
| arch-20220518_lab.xml | 34476 | 2022-05-23 06:01:10 |
| arch-20220518_pre.xml | 22595 | 2022-05-23 06:01:10 |
| FilingSummary.xml | 1687 | 2022-05-23 06:01:10 |
| Financial_Report.xlsx | 5681 | 2022-05-23 06:01:10 |
| MetaLinks.json | 38030 | 2022-05-23 06:01:10 |
| R1.htm | 40243 | 2022-05-23 06:01:10 |
| report.css | 2767 | 2022-05-23 06:01:10 |
| Show.js | 1085 | 2022-05-23 06:01:10 |
| tm2215902d2_8k.htm | 37037 | 2022-05-23 06:01:10 |
| tm2215902d2_8k_htm.xml | 3608 | 2022-05-23 06:01:10 |
| tm2215902d2_ex10-1.htm | 116468 | 2022-05-23 06:01:10 |
| tm2215902d2_ex99-1.htm | 14885 | 2022-05-23 06:01:10 |
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