XML 70 R59.htm IDEA: XBRL DOCUMENT
v3.21.2

Royalty Linked Notes - Summary of Royalty-Linked Notes (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020
Royalty Linked Notes [Abstract] |  |
Total liability related to the sale of future royalties, on inception | $ 10,990 |
Liability related to the sale of future royalties, arising from the Rights Offering | 51 |
Amortization of discount and debt issuance costs | 3,666 |
Adjustments to fair value | 3,696 |
Total liability related to the sale of future royalties at September 30, 2021 | 18,403 |
Current portion of royalty-linked notes |  | $ 114
Long-term Portion | $ 18,403 |

X
- Definition Adjustments to fair value related to sale of future royalties. + References No definition available. + Details
Name: | itrm_AdjustmentsToFairValueRelatedToSaleOfFutureRoyalties
Namespace Prefix: | itrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amortization of discount and debt issuance costs related to sale of future royalties. + References No definition available. + Details
Name: | itrm_AmortizationOfDiscountAndDebtIssuanceCostsRelatedToSaleOfFutureRoyalties
Namespace Prefix: | itrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Liability related to the sale of future royalties. + References No definition available. + Details
Name: | itrm_LiabilityRelatedToSaleOfFutureRoyalties
Namespace Prefix: | itrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Liability related to sale of future royalties arising from rights offering. + References No definition available. + Details
Name: | itrm_LiabilityRelatedToSaleOfFutureRoyaltiesArisingFromRightsOffering
Namespace Prefix: | itrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Royalty linked notes. + References No definition available. + Details
Name: | itrm_RoyaltyLinkedNotesAbstract
Namespace Prefix: | itrm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Royalty-linked notes, current. + References No definition available. + Details
Name: | itrm_RoyaltyLinkedNotesCurrent
Namespace Prefix: | itrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Royalty-linked notes noncurrent. + References No definition available. + Details
Name: | itrm_RoyaltyLinkedNotesNoncurrent
Namespace Prefix: | itrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant