Student Receivables (Details) (USD $)	6 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Net, Noncurrent	$ 27,600,000	$ 18,900,000	$ 24,300,000
Net allowances	29,600,000	24,100,000	27,900,000
Student Receivables, Gross	401,318,000	374,689,000	433,392,000
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	208,248,000	250,282,000	250,282,000
Bad debt expense	(84,683,000)	(89,768,000)	(171,850,000)
Amounts written off	(72,236,000)		(213,884,000)
Ending Balance	220,695,000		208,248,000
Private loans, aid awarded	10,000,000
Old policy [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Student receivables collection period	36 months
New policy [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Student receivables collection period	42 months
In-School Students [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Student Receivables, Gross	191,671,000	188,224,000	194,062,000
Out-of-School Students [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due receivables, collection agency	4 months
Student Receivables, Gross	$ 209,647,000	$ 186,465,000	$ 239,330,000