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Student Receivables (Tables) | 9 Months Ended
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Sep. 30, 2017
Receivables [Abstract] |
Changes in Current and Non-Current Receivables Allowance | Changes in our current and non-current receivables allowance for the quarters and years to date ended September 30, 2017 and 2016 were as follows (dollars in thousands):
|  | Balance, Beginning of Period |  |  | Charges to Expense (1) |  |  | Amounts Written-off |  |  | Balance, End of Period |
For the quarter ended September 30, 2017 |  | $ | 24,574 |  |  | $ | 6,420 |  |  | $ | (6,332 | ) |  | $ | 24,662 |
For the quarter ended September 30, 2016 |  | $ | 21,008 |  |  | $ | 8,457 |  |  | $ | (8,407 | ) |  | $ | 21,058 |
For the year to date ended September 30, 2017 |  | $ | 23,142 |  |  | $ | 21,630 |  |  | $ | (20,110 | ) |  | $ | 24,662 |
For the year to date ended September 30, 2016 |  | $ | 20,229 |  |  | $ | 23,332 |  |  | $ | (22,503 | ) |  | $ | 21,058 |
(1) | Charges to expense include an offset for recoveries of amounts previously written off of $0.8 million and $1.3 million for the quarters ended September 30, 2017 and 2016, respectively, and $3.5 million and $4.9 million for the years to date ended September 30, 2017 and 2016, respectively.

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- Definition Tabular disclosure related to the reconciliation of changes in the allowance for doubtful accounts, including disclosures for bad debt expense and amounts written off. + References No definition available. + Details
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