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Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2017
Significant Accounting Policies [Abstract] |
Schedule of graduation fund liability | The table below presents activity in the Graduation Fund for the nine months ended September 30, 2016 and 2017 (in thousands):
|  | September 30, |  |  | September 30, |
|  | 2016 |  |  | 2017 |
Balance at beginning of period |  | $ | 20,937 |  |  | $ | 29,499 |
Revenue deferred |  |  | 14,753 |  |  |  | 17,494 |
Benefit redeemed |  |  | (9,139) |  |  |  | (12,551) |
Balance at end of period |  | $ | 26,551 |  |  | $ | 34,442 |
Schedule of tuition receivable and allowance for doubtful accounts |
|  | December 31, 2016 |  | September 30, 2017 |
Tuition receivable |  | $ | 30,733 |  | $ | 33,183 |
Allowance for doubtful accounts |  |  | (10,201) |  |  | (12,557) |
Tuition receivable, net |  | $ | 20,532 |  | $ | 20,626 |
Schedule of allowance for doubtful accounts |
|  | For the three months ended |  | For the nine months ended |
|  | September 30, |  | September 30, |
|  | 2016 |  | 2017 |  | 2016 |  | 2017 |
Allowance for doubtful accounts, beginning of period |  | $ | 9,981 |  | $ | 11,760 |  | $ | 10,024 |  | $ | 10,201 |
Additions charged to expense |  |  | 3,865 |  |  | 5,364 |  |  | 11,069 |  |  | 14,835 |
Write-offs, net of recoveries |  |  | (4,052) |  |  | (4,567) |  |  | (11,299) |  |  | (12,479) |
Allowance for doubtful accounts, end of period |  | $ | 9,794 |  | $ | 12,557 |  | $ | 9,794 |  | $ | 12,557 |
Schedule of reconciliation of shares used to calculate basic and diluted earnings per share |
|  | For the three months ended |  | For the nine months ended |
|  | September 30, |  | September 30, |
|  | 2016 |  | 2017 |  | 2016 |  | 2017 |
Weighted average shares outstanding used to compute basic earnings per share |  | 10,616 |  | 10,701 |  | 10,608 |  | 10,671 |
Incremental shares issuable upon the assumed exercise of stock options |  | — |  | 38 |  | — |  | 38 |
Unvested restricted stock and restricted stock units |  | 212 |  | 471 |  | 195 |  | 465 |
Shares used to compute diluted earnings per share |  | 10,828 |  | 11,210 |  | 10,803 |  | 11,174 |

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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