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Summary of Significant Accounting Policies and Recent Accounting Pronouncements (Table) | 12 Months Ended
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Dec. 31, 2014
Accounting Policies |
Accounts receivable, allowance for doubtful accounts |
The changes in the allowance for doubtful accounts during the years ended December 31, 2014, 2013 and 2012 were as follows:
|  | 2014 |  | 2013 |  | 2012
(Dollars in thousands) |  |  |  |  |  |  |  |
Beginning balance | $ | 60,238 |  | $ | 26,902 |  | $ | 23,537
| Additions, net of recoveries |  | 101,282 |  |  | 98,864 |  |  | 67,372
| Deductions |  | (116,942) |  |  | (65,528) |  |  | (64,007)
Ending balance (1) | $ | 44,578 |  | $ | 60,238 |  | $ | 26,902
(1) | In 2014, this balance includes a $6.1 million allowance related to the long-term portion of unbilled equipment installment receivables.

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- Definition A rollforward schedule of allowance for doubtful accounts for trade and other accounts receivable balances. + References No definition available. + Details
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