Pension Plan and Other Postretirement Benefits, Asset Allocation (Details) - Ntelos Holding, Corp [Member] $ in Thousands	May 06, 2016 USD ($) BondFund
Defined Benefit Plan Disclosure [Line Items]
Actual allocations	100.00%
Fair value of plan assets	$ 22,813
Target allocations	100.00%
Number of bond funds \| BondFund	2
Large Cap Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual allocations	32.00%
Fair value of plan assets	$ 7,244
Mid Cap Blend [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual allocations	9.00%
Fair value of plan assets	$ 2,026
Small Cap Blend [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual allocations	5.00%
Fair value of plan assets	$ 1,151
Foreign Stock - Large Cap [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual allocations	30.00%
Fair value of plan assets	$ 6,867
Bond [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual allocations	20.00%
Fair value of plan assets	$ 4,611
Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual allocations	4.00%
Fair value of plan assets	$ 914
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual allocations	76.00%
Target allocations, minimum	65.00%
Target allocations, maximum	75.00%
Bond Securities and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual allocations	24.00%
Target allocations, minimum	25.00%
Target allocations, maximum	35.00%
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Holding percentage of one asset in bond fund	4.00%
Holding percentage of one asset in total portfolio	1.00%

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Fair value of assets that have been segregated and restricted to provide pension or postretirement benefits. Assets include, but are not limited to, stocks, bonds, other investments, earnings from investments, and contributions by the employer and employees.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
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Target allocation of investments of this type to total plan assets presented on a weighted average basis.

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Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

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