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Student Receivables (Changes In Current And Non-Current Receivables Allowance) (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]        
Balance, Beginning of Period $ 59,789 $ 87,276 $ 64,953 $ 90,939
Charges to Expense 8,392 [1] 9,542 [1] 17,810 [1] 26,848 [1]
Amounts Written-off (14,494) (18,770) (29,076) (39,739)
Balance, End of Period 53,687 78,048 53,687 78,048
Recoveries of amounts previously written off $ 2,200 $ 2,600 $ 5,100 $ 5,900
[1] Charges to expense include an offset for recoveries of amounts previously written off of $2.2 million and $2.6 million for the quarters ended June 30, 2012 and 2011, respectively, and $5.1 million and $5.9 million for the years to date ended June 30, 2012 and 2011, respectively.