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Employee Benefit Plans - Change in Fair Value of Level 3 Assets (Details 7) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Change in Fair Value Level 3 assets    
Balance at beginning of period $ 58,648 $ 57,110
Balance at end of period 64,593 58,648
Level 3    
Change in Fair Value Level 3 assets    
Balance at beginning of period 6,960 15,959
Redemptions (4,336) (9,901)
Purchases 2,800 0
Change in fair value 225 902
Balance at end of period $ 5,649 $ 6,960