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Accounts Receivable (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2013
Accounts Receivable |
Schedule of allowance for bad debt | The following table sets forth activities in our allowance for bad debt (in thousands):
|  | 2013 |  | 2012 |  | 2011 |
--- | --- | --- | --- | --- | --- | --- | ---
Balance as of beginning of period |  | $ | 23,719 |  | $ | 24,301 |  | $ | 20,201 |
Charges to provision for bad debt |  |  | 11,745 |  |  | 4,790 |  |  | 8,173 |
Write-off of uncollectible accounts receivable |  |  | (6,940) |  |  | (6,025) |  |  | (4,681) |
Recoveries of bad debt |  |  | 664 |  |  | 653 |  |  | 608 |
Balance as of end of period |  | $ | 29,188 |  | $ | 23,719 |  | $ | 24,301 |

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- Definition Tabular disclosure of the activity in the allowance for doubtful accounts. + References No definition available. + Details
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- Details
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