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Debt, term loan facility (Details) - U.S. Cellular Term loan facility - USD ($) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2015 | Dec. 31, 2016
Term loan |  |
Proceeds from Term Loan borrowings | $ 225.0 |
Interest rate on debt | 2.88% |
Contractual spread | 2.50% |
Frequency of periodic Term Loan payment | quarterly |
Maturity date | Jan. 21, 2022 |
Expected event |  |
Term loan |  |
Term Loan periodic payment amount |  | $ 2.8

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- Definition Description of the frequency of periodic payments (monthly, quarterly, annual). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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