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Government Grants (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jul. 31, 2022 | Dec. 31, 2021 | Jun. 30, 2022
Subsequent Event [Line Items] |  |  |
Increase (decrease) in grants receivable |  | $ 57.8 |
Grants receivable, performance condition period |  |  | 5 years
Subsequent Event |  |  |
Subsequent Event [Line Items] |  |  |
Increase (decrease) in grants receivable | $ 10.2 |  |

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- Definition Grants Receivable, Performance Condition Period + References No definition available. + Details
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Namespace Prefix: | shen_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Increase (Decrease) in Grants Receivable + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |