Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Stockholders' Equity (Parentheticals)

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Consolidated Statements of Stockholders' Equity (Parentheticals) - $ / shares
 3 Months Ended 12 Months Ended
Nov. 19, 2014
Dec. 31, 2014
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Cash dividends declared (in dollars per share)     $ 2.14 $ 2.08 $ 18.50
Special Cash Dividend          
Cash dividends declared (in dollars per share) $ 16.50 $ 16.50