Earnings Per Share (Schedule Of Basic And Diluted Earnings Per Share) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Earnings Per Share [Abstract]
Net income attributable to common shares	$ 17,788	$ 22,869	$ 12,940	$ 9,561	$ (1,571)	$ 15,734	$ 16,832	$ 17,791	$ 63,158	$ 48,786	$ 41,542
Weighted average number of shares outstanding, used in computing basic earnings per share									59,464	58,634	58,062
Dilutive common stock equivalents									962	1,240	694
Weighted average shares used in computing diluted earnings per share									60,426	59,874	58,756
Basic earnings per share									$ 1.06	$ 0.83	$ 0.72
Diluted earnings per share	$ 0.29	$ 0.38	$ 0.21	$ 0.16	$ (0.03)	$ 0.26	$ 0.28	$ 0.30	$ 1.05	$ 0.81	$ 0.71
Anti-dilutive options									2,231	1,478	1,741