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Summary of Significant Accounting Policies - Benefit Obligations (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of projected benefit obligations | $ 12,675 | $ 11,519
nTelos Pension Plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of projected benefit obligations | 6,824 | 5,131
OPEB Plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of projected benefit obligations | 3,573 | 3,193
SERP Plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of projected benefit obligations | $ 2,278 | $ 3,195

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- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Details
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