Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000062709-26-000098-index-headers.html | 2026-04-16 08:11:18 | |
| 0000062709-26-000098-index.html | 2026-04-16 08:11:18 | |
| 0000062709-26-000098.txt | 2026-04-16 08:11:18 | |
 0000062709-26-000098-xbrl.zip | 372525 | 2026-04-16 08:11:18 |
| FilingSummary.xml | 51531 | 2026-04-16 08:11:18 |
 image.jpg | 5443 | 2026-04-16 08:11:18 |
 imageb.jpg | 5443 | 2026-04-16 08:11:18 |
 imagec.jpg | 5443 | 2026-04-16 08:11:18 |
 imaged.jpg | 1099 | 2026-04-16 08:11:18 |
 imagee.jpg | 5443 | 2026-04-16 08:11:18 |
 image_0.jpg | 15592 | 2026-04-16 08:11:18 |
| MetaLinks.json | 1280785 | 2026-04-16 08:11:18 |
| mmc0331202610qex_101.htm | 18940 | 2026-04-16 08:11:18 |
| mmc0331202610qex_1010.htm | 85951 | 2026-04-16 08:11:18 |
| mmc0331202610qex_102.htm | 16807 | 2026-04-16 08:11:18 |
| mmc0331202610qex_103.htm | 18564 | 2026-04-16 08:11:18 |
| mmc0331202610qex_104.htm | 16433 | 2026-04-16 08:11:18 |
| mmc0331202610qex_105.htm | 16955 | 2026-04-16 08:11:18 |
| mmc0331202610qex_106.htm | 92743 | 2026-04-16 08:11:18 |
| mmc0331202610qex_107.htm | 117846 | 2026-04-16 08:11:18 |
| mmc0331202610qex_108.htm | 114170 | 2026-04-16 08:11:18 |
| mmc0331202610qex_109.htm | 84728 | 2026-04-16 08:11:18 |
| mmc0331202610qex_311.htm | 8987 | 2026-04-16 08:11:18 |
| mmc0331202610qex_312.htm | 8982 | 2026-04-16 08:11:18 |
| mmc0331202610qex_321.htm | 7126 | 2026-04-16 08:11:18 |
| mrsh-20260331.htm | 1642874 | 2026-04-16 08:11:18 |
| mrsh-20260331.xsd | 69831 | 2026-04-16 08:11:18 |
| mrsh-20260331_cal.xml | 124549 | 2026-04-16 08:11:18 |
| mrsh-20260331_def.xml | 327030 | 2026-04-16 08:11:18 |
 mrsh-20260331_g1.jpg | 11655 | 2026-04-16 08:11:18 |
| mrsh-20260331_htm.xml | 1705253 | 2026-04-16 08:11:18 |
| mrsh-20260331_lab.xml | 849715 | 2026-04-16 08:11:18 |
| mrsh-20260331_pre.xml | 595755 | 2026-04-16 08:11:18 |
| R1.htm | 55203 | 2026-04-16 08:11:18 |
| R10.htm | 49073 | 2026-04-16 08:11:18 |
| R11.htm | 6355 | 2026-04-16 08:11:18 |
| R12.htm | 20865 | 2026-04-16 08:11:18 |
| R13.htm | 35669 | 2026-04-16 08:11:18 |
| R14.htm | 65680 | 2026-04-16 08:11:18 |
| R15.htm | 70851 | 2026-04-16 08:11:18 |
| R16.htm | 41733 | 2026-04-16 08:11:18 |
| R17.htm | 90685 | 2026-04-16 08:11:18 |
| R18.htm | 14271 | 2026-04-16 08:11:18 |
| R19.htm | 35508 | 2026-04-16 08:11:18 |
| R2.htm | 103712 | 2026-04-16 08:11:18 |
| R20.htm | 67993 | 2026-04-16 08:11:18 |
| R21.htm | 74954 | 2026-04-16 08:11:18 |
| R22.htm | 49338 | 2026-04-16 08:11:18 |
| R23.htm | 11391 | 2026-04-16 08:11:18 |
| R24.htm | 18519 | 2026-04-16 08:11:18 |
| R25.htm | 80692 | 2026-04-16 08:11:18 |
| R26.htm | 17876 | 2026-04-16 08:11:18 |
| R27.htm | 8465 | 2026-04-16 08:11:18 |
| R28.htm | 57921 | 2026-04-16 08:11:18 |
| R29.htm | 43865 | 2026-04-16 08:11:18 |
| R3.htm | 50222 | 2026-04-16 08:11:18 |
| R30.htm | 19644 | 2026-04-16 08:11:18 |
| R31.htm | 33946 | 2026-04-16 08:11:18 |
| R32.htm | 67077 | 2026-04-16 08:11:18 |
| R33.htm | 55314 | 2026-04-16 08:11:18 |
| R34.htm | 43773 | 2026-04-16 08:11:18 |
| R35.htm | 77990 | 2026-04-16 08:11:18 |
| R36.htm | 35700 | 2026-04-16 08:11:18 |
| R37.htm | 63978 | 2026-04-16 08:11:18 |
| R38.htm | 68383 | 2026-04-16 08:11:18 |
| R39.htm | 48825 | 2026-04-16 08:11:18 |
| R4.htm | 151643 | 2026-04-16 08:11:18 |
| R40.htm | 73106 | 2026-04-16 08:11:18 |
| R41.htm | 5201 | 2026-04-16 08:11:18 |
| R42.htm | 16817 | 2026-04-16 08:11:18 |
| R43.htm | 8400 | 2026-04-16 08:11:18 |
| R44.htm | 49834 | 2026-04-16 08:11:18 |
| R45.htm | 7842 | 2026-04-16 08:11:18 |
| R46.htm | 9016 | 2026-04-16 08:11:18 |
| R47.htm | 44113 | 2026-04-16 08:11:18 |
| R48.htm | 18505 | 2026-04-16 08:11:18 |
| R49.htm | 16125 | 2026-04-16 08:11:18 |
| R5.htm | 20134 | 2026-04-16 08:11:18 |
| R50.htm | 7320 | 2026-04-16 08:11:18 |
| R51.htm | 46544 | 2026-04-16 08:11:18 |
| R52.htm | 58928 | 2026-04-16 08:11:18 |
| R53.htm | 64280 | 2026-04-16 08:11:18 |
| R54.htm | 58025 | 2026-04-16 08:11:18 |
| R55.htm | 20520 | 2026-04-16 08:11:18 |
| R56.htm | 19730 | 2026-04-16 08:11:18 |
| R57.htm | 26702 | 2026-04-16 08:11:18 |
| R58.htm | 13778 | 2026-04-16 08:11:18 |
| R59.htm | 25238 | 2026-04-16 08:11:18 |
| R6.htm | 109255 | 2026-04-16 08:11:18 |
| R60.htm | 19203 | 2026-04-16 08:11:18 |
| R61.htm | 32697 | 2026-04-16 08:11:18 |
| R62.htm | 41837 | 2026-04-16 08:11:18 |
| R63.htm | 16247 | 2026-04-16 08:11:18 |
| R64.htm | 12372 | 2026-04-16 08:11:18 |
| R65.htm | 12586 | 2026-04-16 08:11:18 |
| R66.htm | 21972 | 2026-04-16 08:11:18 |
| R67.htm | 32151 | 2026-04-16 08:11:18 |
| R68.htm | 14015 | 2026-04-16 08:11:18 |
| R69.htm | 41457 | 2026-04-16 08:11:18 |
| R7.htm | 64937 | 2026-04-16 08:11:18 |
| R70.htm | 35828 | 2026-04-16 08:11:18 |
| R71.htm | 21263 | 2026-04-16 08:11:18 |
| R72.htm | 106422 | 2026-04-16 08:11:18 |
| R73.htm | 57372 | 2026-04-16 08:11:18 |
| R74.htm | 16246 | 2026-04-16 08:11:18 |
| R75.htm | 16742 | 2026-04-16 08:11:18 |
| R76.htm | 15827 | 2026-04-16 08:11:18 |
| R77.htm | 27844 | 2026-04-16 08:11:18 |
| R78.htm | 22064 | 2026-04-16 08:11:18 |
| R79.htm | 15851 | 2026-04-16 08:11:18 |
| R8.htm | 8467 | 2026-04-16 08:11:18 |
| R80.htm | 16644 | 2026-04-16 08:11:18 |
| R81.htm | 52568 | 2026-04-16 08:11:18 |
| R82.htm | 25180 | 2026-04-16 08:11:18 |
| R9.htm | 26596 | 2026-04-16 08:11:18 |
| report.css | 2768 | 2026-04-16 08:11:18 |
| Show.js | 1086 | 2026-04-16 08:11:18 |