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Other Long-Term Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2015
Other Long-Term Liabilities [Abstract] |
Schedule of other long-term liabilities |
|  |  |  | 2014 |  |  |  | 2015
Loss on facilities not in use |  |  |  | $ | 21,280 |  |  |  | $ | 15,229
Deferred revenue, net of current portion |  |  |  |  | 9,654 |  |  |  |  | 14,429
Deferred rent and other facility costs |  |  |  |  | 8,646 |  |  |  |  | 8,993
Deferred payments related to acquisition |  |  |  |  | 5,198 |  |  |  |  | 6,078
Lease incentives |  |  |  |  | 1,056 |  |  |  |  | 3,125
Deferred gain on sale of campus building |  |  |  |  | 414 |  |  |  |  | 133
|  |  |  | $ | 46,248 |  |  |  | $ | 47,987

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