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v3.3.1.900

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Apr. 30, 2008 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2011 | Jan. 30, 2016 | Oct. 28, 2013 | Dec. 31, 2012
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Average days from the date of receipt in which funds remain as restricted cash and cash equivalents |  | 60 to 90 days |  |  |  |  |  |
Note receivable from a financial institution at fair market value |  |  |  |  |  |  |  | $ 27,000
Interest rate on notes |  | 11.00% |  |  |  |  |  |
Interest rate on loan |  | 6.00% |  |  |  |  |  |
Default rate |  | 5.00% |  |  |  |  |  |
Interest income and other income on the loan |  | $ 2,187 |  | $ 1,459 |  |  |  |
Default interest amount |  | 432 |  |  |  |  |  |
Late payment liquidated damage amount |  | 1,392 |  |  |  |  |  |
Statutory trustee's fee amount |  | $ 139 |  |  |  |  |  |
Additional amount deposited in escrow |  |  |  |  |  |  | $ 344 |
Date of order for late payment liquidated damage amount |  | Oct. 28, 2013 |  |  |  |  |  |
Other income |  | $ 958 |  |  |  |  |  |
Capitalized interest rate on borrowings to finance improvements |  | 1.90% | 1.90% | 1.90% |  |  |  |
Agreement to pay former owner royalty amount | $ 22,500 |  |  |  |  |  |  |
Settlement of future royalty payment obligation | $ 5,920 |  |  |  |  |  |  |
Royalty amortization period | 20 years |  |  |  |  |  |  |
Fair value of the shares issued of the license agreement |  | $ 3,394 |  |  |  |  |  |
Discount net cash flows |  | 35.00% |  |  |  |  |  |
Reserve for uncertain tax positions including interest and penalties |  | $ 1,706 | $ 0 |  |  |  |  |
Description of area of the company's campus in Phoenix, Arizona |  | 200+ acre campus |  |  |  |  |  |
Reduction in revenue due to scholarships offered to students |  | $ 163,893 | $ 139,962 | $ 111,789 |  |  |  |
Period for write off of inactive student accounts |  | 150 days |  |  |  |  |  |
Other Assets [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Property and equipment, useful life |  | 15 years |  |  |  |  |  |
Prepaid maintenance and service fees |  |  |  |  | $ 4,900 |  |  |
Amortization of other current assets |  | Next twelve month |  |  |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Default interest and other fees payable |  |  |  |  |  | $ 501 |  |
Furniture, Fixtures and Equipment [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Property and equipment, useful life |  | 10 years |  |  |  |  |  |
Computer Equipment [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Property and equipment, useful life |  | 4 years |  |  |  |  |  |
Vehicles [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Property and equipment, useful life |  | 5 years |  |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Number of days from the date of receipt in which funds remain as restricted cash and cash equivalents |  | 60 days |  |  |  |  |  |
Minimum [Member] | Other Assets [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Agreement period of acquired source code rights for the software developed, prepaid maintenance and service fee |  |  |  |  | 7 years |  |  |
Minimum [Member] | Land Improvements and Buildings [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Property and equipment, useful life |  | 10 years |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Number of days from the date of receipt in which funds remain as restricted cash and cash equivalents |  | 90 days |  |  |  |  |  |
Maximum [Member] | Land Improvements and Buildings [Member] |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Property and equipment, useful life |  | 40 years |  |  |  |  |  |

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