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Revenue from Contracts with Customers - Contract Acquisition Costs and Cost to Fulfill Contracts (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Capitalized Contract Cost [Roll Forward] |  |  |  |
Beginning Balance | $ 10,476 | $ 9,755 | $ 10,091 | $ 9,841
Contract payments | 1,840 | 1,613 | 4,996 | 4,246
Contract amortization | (1,399) | (1,339) | (4,170) | (4,058)
Ending Balance | $ 10,917 | $ 10,029 | $ 10,917 | $ 10,029

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- Definition Capitalized Contract Cost, Payments + References No definition available. + Details
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- Definition Capitalized Contract Cost [Roll Forward] + References No definition available. + Details
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Namespace Prefix: | shen_
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- Definition Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
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- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
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