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Subsequent Events Subsequent Events (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Apr. 26, 2018
Mar. 31, 2018
[1]
Mar. 31, 2017
[2]
Mar. 31, 2018
Mar. 31, 2017
Subsequent Event [Line Items]          
Dividends, Common Stock, Cash   $ 1,042 $ 1,028 $ 3,184 $ 3,093
Subsequent Event [Member]          
Subsequent Event [Line Items]          
Quarterly cash dividend declared, common stock $ 0.14        
[1] Cash dividends of $0.14 per share were paid in the quarter ended March 31, 2018.
[2] Cash dividends of $0.13 per share were paid in the quarter ended March 31, 2017.