Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - shares	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Open market purchase of treasury shares, shares	654,958	283,772	0
Employee Stock Purchase Plans, shares	17,304	13,243	5,440
Exercise of stock options, shares	68,037	55,200	134,450
Issuance of deferred shares, shares	631,443	326,763	266,209
Treasury shares repurchased to satisfy tax withholding obligations	205,504	105,058	80,096