Discontinued Operations - Assets and Liabilities of Discontinued Operations on Consolidated Balance Sheets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]
Cash and cash equivalents		$ 475	$ 127,104	$ 108,867
Receivables, net	473	1,521
Other current assets		1,344
Assets held for sale	76,846	10,879
Total current assets	77,319	14,219
Property and equipment, net		2,731
Other assets, net	975	1,507
Assets held for sale		97,470
Total assets of discontinued operations	78,294	115,927
Accounts payable and accrued expenses	579	1,370
Deferred tuition revenue		1,522
Remaining lease obligations	14,927	13,132
Liabilities held for sale	50,357	19,671
Total current liabilities	65,863	35,695
Remaining lease obligations	22,689	30,952
Other	170	6,512
Liabilities held for sale		25,732
Total liabilities of discontinued operations	$ 88,722	$ 98,891

The aggregate value (measured at the lower of net carrying value or fair value less cost of disposal) for current assets (assets with expected useful life shorter than one year or one operating cycle, whichever is longer) of a disposal group, including a component of the entity (discontinued operation), to be sold, as of the financial statement date.

No definition available.