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, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Earnings Per Share [Abstract]
Net income attributable to common shares	$ 30,041	$ 29,524	$ 21,343	$ 15,064	$ 17,788	$ 22,869	$ 12,940	$ 9,561	$ 95,972	$ 63,158	$ 48,786
Weighted average number of shares outstanding, used in computing basic earnings per share									58,388	59,464	58,634
Dilutive common stock equivalents									1,059	962	1,240
Weighted average shares used in computing diluted earnings per share									59,447	60,426	59,874
Basic earnings per share									$ 1.64	$ 1.06	$ 0.83
Diluted earnings per share	$ 0.52	$ 0.50	$ 0.36	$ 0.25	$ 0.29	$ 0.38	$ 0.21	$ 0.16	$ 1.61	$ 1.05	$ 0.81
Anti-dilutive options									503	2,231	1,478