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Revenue Recognition (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Revenues | $ 116,469 |  |
Instruction and educational support | 63,776 | $ 61,416 |
Provision for income taxes | 2,150 | 7,887 |
Net income | 9,467 | $ 10,578 |
Tuition receivable - net | 24,997 |  | $ 23,122
Other current assets | 10,558 |  | 11,293
Income taxes payable | 2,541 |  | 1,038
Accounts payable and accrued expenses | 45,806 |  | 46,177
Retained earnings | $ 168,413 |  | 162,006
Percentage of tuition revenue in total revenue | 96.00% |  |
Accounting Standards Update 2014-09 |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Impact of adoption of new accounting standards |  |  | $ (171)
Accounting Standards Update 2014-09 | Balances without Adoption of ASC 606 |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Revenues | $ 116,338 |  |
Instruction and educational support | 63,584 |  |
Provision for income taxes | 2,167 |  |
Net income | 9,511 |  |
Tuition receivable - net | 23,769 |  |
Other current assets | 12,084 |  |
Income taxes payable | 2,624 |  |
Retained earnings | 168,628 |  |
Accounting Standards Update 2014-09 | Effect of Change Higher/Lower |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Revenues | 131 |  |
Instruction and educational support | 192 |  |
Provision for income taxes | (17) |  |
Net income | (44) |  |
Tuition receivable - net | 1,228 |  |
Other current assets | (1,526) |  |
Income taxes payable | (83) |  |
Retained earnings | (215) |  |
Tuition |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Revenues | 112,000 |  |
Academic fees |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Revenues | 3,100 |  |
Textbook-related sales |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Revenues | 900 |  |
Other |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Revenues | $ 500 |  |

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