Business and Summary of Significant Accounting Principles (Revenue Recognition) (Details) $ in Millions |
9 Months Ended |
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Sep. 30, 2017
USD ($)
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| Universal Service Fund | |
| Public Utilities, General Disclosures [Line Items] | |
| Revenue adjustment | $ 5.5 |
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- Definition Revenue adjustment during period No definition available.
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Details
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