Financial Instruments And Fair Value Measurements (Reconciliation Of Changes In Fair Value Of Auction Rate Securities) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2010
Schedule of Trading Securities and Other Trading Assets [Line Items]
Changes in Other than temporary impairment, credit losses related to investments	$ (4,000)		$ (4,293)		$ (4,783)
Change in credit based OTTI due to redemption	0		342		0
Auction Rate Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized cost	57,625		64,275
Changes in losses related to investments, cost	0		0
Redemptions/sale, cost	(5,000)		(6,650)
Amortized cost	52,625		57,625		64,275
Temporary impairment losses, Beginning balance	(4,336)	[1]	(6,280)	[1]	(4,936)	[1]
Changes in temporary impairment losses related to investments	1,404	[1]	(1,593)	[1]
Changes in temporary impairment losses related to redemption/sale	540	[1]	249	[1]
Temporary impairment losses, Ending balance	(4,336)	[1]	(6,280)	[1]	(4,936)	[1]
Other than temporary impairment, non-credit losses	0	[1]	0	[1]	(32)	[1]
Changes in non-credit based other than temporary impairment losses related to investments	0	[1]	0	[1]
Changes in non-credit based other than temporary impairment losses related to redemption/sale	0	[1]	32	[1]
Other than temporary impairment, non-credit losses	0	[1]	0	[1]	(32)	[1]
Other than temporary impairment, credit losses, Beginning balance	(14,000)	[2]	(10,000)	[2]	(6,049)	[2]
Changes in Other than temporary impairment, credit losses related to investments	(4,000)	[2]	(4,293)	[2]
Change in credit based OTTI due to redemption	0	[2]	342	[2]
Other than temporary impairment, credit losses, Ending balance	(14,000)	[2]	(10,000)	[2]	(6,049)	[2]
Aggregate Fair Value	41,345		53,258
Changes in losses related to investments, fair value	(2,596)		(5,886)
Redemptions, fair value	(4,460)		(6,027)
Aggregate Fair Value	$ 34,289		$ 41,345		$ 53,258

[1] OTTI means "other-than-temporary impairment." The amounts in this column are recorded, net of tax, in the accumulated other comprehensive income (loss) component of stockholders' equity

[2] The amounts in this column are recorded in the consolidated statement of operations.