Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Jun. 30, 2011
Income Taxes [Abstract]
Reserves and accruals	$ 28,289	$ 29,945
Stock-based compensation	26,682	28,768
Deferred compensation and post-retirement obligations	31,880	27,977
Deferred rent	3,130	2,929
Original issue discount related to the Notes	486	883
Other	4,217	1,323
Total deferred tax assets	94,684	91,825
Goodwill and other intangible assets	(143,616)	(121,842)
Unbilled revenue	(9,448)	(11,758)
Prepaid expenses	(4,313)	(4,011)
Other	(6,974)	(6,257)
Total deferred tax liabilities	(164,351)	(143,868)
Net deferred tax liability	$ (69,667)	$ (52,043)