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Goodwill and Other Intangible Assets (Narrative) (Details) (USD $)
3 Months Ended 12 Months Ended 3 Months Ended 12 Months Ended
Dec. 31, 2011
Oct. 02, 2011
Jul. 03, 2011
Apr. 03, 2011
Jan. 02, 2011
Oct. 03, 2010
Jul. 04, 2010
Apr. 04, 2010
Dec. 31, 2011
Jan. 02, 2011
Jan. 03, 2010
Oct. 02, 2011
Online Lead Generation Business [Member]
Oct. 03, 2010
Online Lead Generation Business [Member]
Dec. 31, 2009
Kaplan Compliance Solutions [Member]
Jan. 03, 2010
Kaplan EduNeering and Kaplan Compliance Solutions [Member]
Goodwill [Line Items]                              
Goodwill impairment charges $ 0 $ 11,923,000 $ 0 $ 0         $ 11,923,000 $ 24,634,000 $ 8,492,000 $ 11,900,000      
Impairment of goodwill and other intangible assets         0 27,477,000 0 0   27,477,000     27,500,000    
Goodwill and other long-lived asset impairment charges                     25,387,000     16,900,000 25,400,000
Amortization of Intangible Assets                              
Estimated amortization of intangible assets, 2012                 15,000,000            
Estimated amortization of intangible assets, 2013                 12,000,000            
Estimated amortization of intangible assets, 2014                 9,000,000            
Estimated amortization of intangible assets, 2015                 8,000,000            
Estimated amortization of intangible assets, 2016                 5,000,000            
Estimated amortization of intangible assets, after 2016                 $ 6,000,000