Tabulation of Business Segment Information Based on Current Segmentation (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Revenue, Major Customer [Line Items]
Total Consolidated Revenues	$ 1,964,375	$ 2,071,783	$ 2,160,264
Amortization Expense	(9,480)	(9,347)	(4,297)
Depreciation and Other	(18,333)	888	1,226
Total Consolidated Operating Income	166,928	238,925	501,506
Interest Income	1,652	817	1,538
Interest Expense	(3,611)	(2,612)	(1,282)
Net Gain on Sale of Assets	0	3,695	0
Net Interest and Other Income (Expense)	(1,959)	1,900	256
Total Consolidated Income from Continuing Operations Before Income Taxes	164,969	240,825	501,762
Total Consolidated Assets	1,857,018	1,842,537	1,850,503
Total Consolidated Additions to Long-lived Assets	144,368	412,125	142,901
Increase in Capital Assets from Acquisitions	2,897	47,947	23
Increase in Intangible Assets and Goodwill	29,696	238,880	10,276
Total Consolidated Depreciation	83,111	74,472	56,462
Total Consolidated Amortization	10,139	10,002	4,732
Total Increase in Consolidated Long-lived Assets	144,368	412,125	142,901
Capital Expenditures	111,775	125,298	132,602
Business, Technology and Management
Revenue, Major Customer [Line Items]
Total Consolidated Revenues	1,096,695	1,303,556	1,460,146
Total Consolidated Operating Income	90,045	201,122	359,403
Total Consolidated Assets	431,265	383,064	446,810
Total Consolidated Additions to Long-lived Assets	42,993	54,320	55,726
Total Consolidated Depreciation	43,714	37,835	26,572
Medical and Healthcare
Revenue, Major Customer [Line Items]
Total Consolidated Revenues	672,604	611,953	558,335
Total Consolidated Operating Income	54,076	9,602	106,965
Total Consolidated Assets	1,017,692	1,029,481	1,036,834
Total Consolidated Additions to Long-lived Assets	46,893	268,288	40,590
Total Consolidated Depreciation	25,706	22,626	17,025
Total Consolidated Amortization	5,391	6,013	420
International and Professional Education
Revenue, Major Customer [Line Items]
Total Consolidated Revenues	196,576	156,284	141,783
Total Consolidated Operating Income	50,620	36,660	38,209
Total Consolidated Assets	278,430	219,108	187,771
Total Consolidated Additions to Long-lived Assets	41,311	60,655	20,720
Total Consolidated Depreciation	4,260	3,974	2,495
Total Consolidated Amortization	4,089	3,334	3,877
Corporate
Revenue, Major Customer [Line Items]
Total Consolidated Assets	107,625	179,342	128,126
Total Consolidated Additions to Long-lived Assets	13,171	28,862	25,865
Total Consolidated Depreciation	9,431	10,037	10,370
Intersegment Revenues
Revenue, Major Customer [Line Items]
Total Consolidated Revenues	(1,500)	0	0
Assets of Business Held for Sale
Revenue, Major Customer [Line Items]
Total Consolidated Assets	$ 22,006	$ 31,542	$ 50,962