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v3.22.0.1

Segment Information (Details) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Disclosure of entity's operating segments [text block] [Abstract] |  |
Significant customers | 2 | 3
Consolidated revenue percentage | 10.00% | 10.00%

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- Definition Consolidated revenue percentage. + References No definition available. + Details
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Namespace Prefix: | tsat_
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Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | tsat_
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Balance Type: | na
Period Type: | duration

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- Definition significant customers. + References No definition available. + Details
Name: | tsat_significantCustomers
Namespace Prefix: | tsat_
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Balance Type: | na
Period Type: | duration