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Derivatives Derivatives Textuals (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]      
Derivative, Amount of Hedged Item $ 420,000 $ 431,000 $ 463,000
Derivative, Fixed Interest Rate 1.63% 2.61%  
Derivative, Variable Interest Rate 3.38% 4.36%  
Interest Rate Cash Flow Hedge Liability at Fair Value $ 14,346 $ 26,179  
Reclassification of interest from cash flow hedge into interest expense $ 11,553 $ 4,638 $ 244