XML 36 R24.htm IDEA: XBRL DOCUMENT
v3.21.1

Investments (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2021
Investments [Abstract] |
Other Investments | Investments consist of the following:
(in thousands) | March 31, 2021 |  | December 31, 2020
SERP Investments at fair value | $ | 2,039 |  |  | $ | 2,687 |
Cost method investments | 10,780 |  |  | 10,536 |
Equity method investments | 557 |  |  | 546 |
Total investments | $ | 13,376 |  |  | $ | 13,769 |

X
- Definition Tabular disclosure of other investments which do not have readily determinable fair values. + References No definition available. + Details
Name: | shen_ScheduleOfOtherInvestmentsWhichDoNotHaveReadilyDeterminableFairValuesTableTextBlock
Namespace Prefix: | shen_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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