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| 0001104659-22-113222.txt | 2022-11-01 09:09:29 | |
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| FilingSummary.xml | 1650 | 2022-11-01 09:09:29 |
| Financial_Report.xlsx | 5663 | 2022-11-01 09:09:29 |
| imgn-20221026.xsd | 3036 | 2022-11-01 09:09:29 |
| imgn-20221026_lab.xml | 34476 | 2022-11-01 09:09:29 |
| imgn-20221026_pre.xml | 22597 | 2022-11-01 09:09:29 |
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| R1.htm | 38062 | 2022-11-01 09:09:29 |
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| tm2229385d1_8k.htm | 25085 | 2022-11-01 09:09:29 |
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| tm2229385d1_ex99-1.htm | 10090 | 2022-11-01 09:09:29 |
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