Annual report pursuant to Section 13 and 15(d)

Note 8 - Supplemental Equity and Accumulated Other Comprehensive Income (Loss) (Details Textual)

v3.19.2
Note 8 - Supplemental Equity and Accumulated Other Comprehensive Income (Loss) (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Common Stock, Dividends, Per Share, Declared   $ 1.28 $ 1.28 $ 1.28  
Stock Repurchased During Period, Shares   95,000      
Stock Repurchased During Period, Average Share Price   $ 162.15      
Stockholders' Equity Attributable to Parent, Ending Balance   $ 1,165,589 $ 1,079,061 $ 949,627 $ 879,280
Accumulated Other Comprehensive Income (Loss), Derivative Qualifying as Hedge, Excluded Component, Including Portion Attributable to Noncontrolling Interest [Member]          
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent        
Stockholders' Equity Attributable to Parent, Ending Balance   $ (9,537)
Forecast [Member]          
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent $ (1,748)