Aggregate dividends declared during the period for each share of common stock outstanding.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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Date the declared dividend will be paid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586

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Date the dividend to be paid was declared, in CCYY-MM-DD format.

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Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

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Subsequent Events (Details) - $ / shares		12 Months Ended
Subsequent Events (Details) - $ / shares	Aug. 24, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Subsequent Events
Dividends declared per share		$ 1.36	$ 1.18	$ 1.06
Dividend declared
Subsequent Events
Dividend declared date	Aug. 24, 2018
Dividends declared per share	$ 0.37
Dividend payable date	Oct. 02, 2018
Dividend record date	Sep. 11, 2018