Goodwill and Other Intangible Assets - Schedule of Cost Basis, Accumulated Amortization Net Book Value of Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Intangible Assets Net Excluding Goodwill [Line Items]
Cost	$ 10,957	$ 12,457
Accumulated Amortization	(10,373)	(10,628)
Net Book Value of Amortizable intangible assets, net	584	1,829
Non-amortizable intangible assets	39,533	54,177
Intangible assets, net	40,117	56,006
Courseware [Member]
Intangible Assets Net Excluding Goodwill [Line Items]
Cost	10,861	12,361
Accumulated Amortization	(10,297)	(10,576)
Net Book Value of Amortizable intangible assets, net	564	1,785
Other [Member]
Intangible Assets Net Excluding Goodwill [Line Items]
Cost	96	96
Accumulated Amortization	(76)	(52)
Net Book Value of Amortizable intangible assets, net	20	44
Accreditation, licensing, and Title IV Program participation rights [Member]
Intangible Assets Net Excluding Goodwill [Line Items]
Non-amortizable intangible assets	1,000	1,000
Trade names [Member]
Intangible Assets Net Excluding Goodwill [Line Items]
Non-amortizable intangible assets	$ 38,533	$ 53,177