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Revenue from Contracts with Customers - Narrative (Details) - USD ($) $ in Millions | 4 Months Ended | 9 Months Ended
--- | --- | ---
Apr. 30, 2019 | Sep. 30, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Management fee, percentage |  | 8.00%
Service fee retained by Sprint |  | 8.60%
Management fee on prepaid wireless revenues and costs |  | 6.00%
Revenue | $ 1.5 |
Capitalized contract costs, average customer life (in months) |  | 44 months
Cable |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Installation revenue, recognition period |  | 10 months
Commissions and other costs, recognition period (in months) |  | 44 months
Wireline |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Installation revenue, recognition period |  | 11 months
Commissions and other costs, recognition period (in months) |  | 72 months
Minimum |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Reimbursement payment, cost of equipment and commissions, benefit period for recognition |  | 21 months
Maximum |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Reimbursement payment, cost of equipment and commissions, benefit period for recognition |  | 53 months

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- Definition Amortization period of cost capitalized in obtaining or fulfilling contract with customer, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131251-203054 + Details
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