Segment Information (Summary Of Segment Financial Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2011		Dec. 31, 2010		Jun. 30, 2011
Segment Reporting Information [Line Items]
Total revenues	$ 270,403	[1]	$ 247,117	[1]	$ 526,961	[1]	$ 480,531	[1]
Total income before taxes	55,660	[1]	48,150	[1]	111,457	[1]	95,237	[1]
Total identifiable assets	1,397,430	[2]			1,397,430	[2]			1,433,018	[2]
United States [Member]
Segment Reporting Information [Line Items]
Total revenues	135,227	[1]	131,492	[1]	266,070	[1]	261,573	[1]
Total income before taxes	29,733	[1]	25,594	[1]	61,910	[1]	53,869	[1]
Total identifiable assets	653,438	[2]			653,438	[2]			668,527	[2]
International [Member]
Segment Reporting Information [Line Items]
Total revenues	149,768	[1]	126,765	[1]	286,529	[1]	239,940	[1]
Total income before taxes	36,679	[1]	30,660	[1]	68,568	[1]	56,551	[1]
Total identifiable assets	743,992	[2]			743,992	[2]			764,491	[2]
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total revenues	(14,592)	[1],[3]	(11,140)	[1],[3]	(25,638)	[1],[3]	(20,982)	[1],[3]
Total income before taxes	$ (10,752)	[1],[3]	$ (8,104)	[1],[3]	$ (19,021)	[1],[3]	$ (15,183)	[1],[3]

[1] Amounts based on the location of the selling entity.

[2] Amounts based on the physical location of the assets.

[3] Amounts primarily represent elimination of U.S. and Ireland's intercompany business.