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Acquisition of New York Code and Design Academy - Purchase Price Allocation (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Business Acquisition [Line Items] |  |  |  |
Goodwill | $ 20,744 | $ 20,744 | $ 6,800 | $ 6,800
Cash paid for acquisition, net of cash acquired |  | 7,635 |  |
New York Code And Design Academy, Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cash | 790 | 790 |  |
Other assets | 1,265 | 1,265 |  |
Trade name | 5,660 | 5,660 |  |
Goodwill | 13,944 | 13,944 |  |
Liabilities assumed | (4,734) | (4,734) |  |
Total assets acquired and liabilities assumed, net | 16,925 | 16,925 |  |
Less: contingent consideration | (14,500) | (14,500) |  |
Cash paid for acquisition, net of cash acquired |  | $ 1,635 |  |
Discount rate |  | 4.50% |  |
Measurement adjustment to goodwill |  | $ 300 |  |
Reduction in fair value of contingent consideration | $ 1,300 |  |  |
Measurement adjustment to deferred tax liabilities |  | $ 300 |  |

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