Contingencies (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
Jul. 03, 2011	Dec. 01, 2011	Jul. 22, 2011 CHI-Broomall [Member]
Number of existing claims	0
Number of pending program reviews	6
Amount receivable under agreement termination			$ 1.6
Placement rate at which programs may be subject to a hold on new enrollments		60.00%
Student Enrollment		550

The total amount of pending claims pertaining to a loss contingency accrual as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Name:	us-gaap_LossContingencyPendingClaimsNumber
Namespace Prefix:	us-gaap
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant