Condensed Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - shares	9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Exercise of stock options, shares	0	22,913
Issuance of deferred shares, shares	253,124	395,780
Employee Stock Purchase Plan, shares	16,843	12,734
Other treasury shares purchases, shares	52,911	134,253