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Other Long-Term Liabilities (Details) - Schedule of expects the backlog $ in Thousands | 12 Months Ended
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Dec. 31, 2021 CAD ($)
Backlog [Member] |
Other Long-Term Liabilities (Details) - Schedule of expects the backlog [Line Items] |
2022 | $ 582
2023 | 461
2024 | 313
2025 | 219
2026 | 185
Thereafter | 372
Total | 2,132
Expected undiscounted contractual cash flows [Member] |
Other Long-Term Liabilities (Details) - Schedule of expects the backlog [Line Items] |
2022 | 3,504
2023 | 3,580
2024 | 3,446
2025 | 3,180
2026 | 2,960
Thereafter | 34,990
Total | $ 51,660

X
- Definition Amount of contract revenue backlog year four. + References No definition available. + Details
Name: | tsat_ContractRevenueBacklogYearFour
Namespace Prefix: | tsat_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of contract revenue backlog year one. + References No definition available. + Details
Name: | tsat_ContractRevenueBacklogYearOne
Namespace Prefix: | tsat_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of contract revenue backlog year six + References No definition available. + Details
Name: | tsat_ContractRevenueBacklogYearSix
Namespace Prefix: | tsat_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of contract revenue backlog year thereafter. + References No definition available. + Details
Name: | tsat_ContractRevenueBacklogYearThereafter
Namespace Prefix: | tsat_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of contract revenue backlog year three. + References No definition available. + Details
Name: | tsat_ContractRevenueBacklogYearThree
Namespace Prefix: | tsat_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of contract revenue backlog year total. + References No definition available. + Details
Name: | tsat_ContractRevenueBacklogYearTotal
Namespace Prefix: | tsat_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of contract revenue backlog year two. + References No definition available. + Details
Name: | tsat_ContractRevenueBacklogYearTwo
Namespace Prefix: | tsat_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | tsat_OtherLongTermLiabilitiesDetailsScheduleofexpectsthebacklogLineItems
Namespace Prefix: | tsat_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_TypesOfFinancialLiabilitiesAxis=tsat_ExpectsTheBacklogMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfFinancialLiabilitiesAxis=tsat_ExpectedUndiscountedContractualCashFlowsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |