Wireless Equipment Installment Plans - Additional Information (Detail) - USD ($) $ in Billions |
3 Months Ended | |
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Mar. 31, 2016 |
Dec. 31, 2015 |
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Total portfolio of device installment plan receivables | $ 12.9 | |
| Receivables derecognized under receivable securitization program | 9.6 | |
| Guarantee liability | 0.1 | $ 0.2 |
| Finance receivables collected and remitted, net of fees | 2.6 | |
| Cash proceeds received, net of remittances | 6.9 | |
| Maximum exposure to loss related to involvement with sellers | 2.6 | |
| Other Assets | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Deferred purchase price receivable | 1.3 | $ 2.2 |
| Prepaid Expenses and Other Assets | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Deferred purchase price receivable | $ 1.3 |
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- 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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- Definition Principal amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction. Continuing involvement includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition This item represents a non-contingent liability for the fair value of an obligation to stand ready to perform over the term of a guaranty issued in the event that specified triggering events or conditions occur. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition This is the sum of principal amount outstanding for both securitized and unsecuritized loans of all types. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition This is the principal amount outstanding for securitized loans only (across all types of loans). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Cash Proceeds Received, Net of Remittances No definition available.
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- Definition Finance Receivables Collected and Remitted, Net of Fees No definition available.
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