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Goodwill And Intangible Assets, Net (Summary Of Movement In Carrying Value Of Goodwill) (Details) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 31, 2019
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2018
Gross value, Beginning Balance   $ 63,194,000 $ 72,473,000 $ 73,572,000  
Gross value, Impairment loss     0 0  
Gross value, Disposal of FIHRST (Note 23)     (599,000)    
Gross value, Deconsolidation of CPS (Note 23)     (1,346,000)    
Gross value, Liquidation of subsidiaries   (26,629,000)      
Gross value, Foreign currency adjustment   6,384,000 (7,334,000) (1,099,000)  
Gross value, Ending Balance   42,949,000 63,194,000 72,473,000  
Accumulated impairment, Beginning Balance   (39,025,000) (35,157,000) (20,773,000)  
Accumulated impairment, Impairment loss $ (8,200,000) 0 (5,589,000) (14,440,000)  
Accumulated impairment, Disposal of FIHRST (Note 23)     0    
Accumulated impairment, Deconsolidation of CPS (Note 3)     1,346,000    
Accumulated impairment, Liquidation of subsidiaries   26,629,000      
Accumulated impairment, Foreign currency adjustment   (1,400,000) 375,000 56,000  
Accumulated impairment, Ending Balance   (13,796,000) (39,025,000) (35,157,000)  
Carrying value, Beginning Balance         $ 52,799,000
Carrying value, Impairment loss     (5,589,000) (14,440,000)  
Carrying value, Disposal of FIHRST (Note 23)     (599,000)    
Carrying value, Deconsolidation of CPS (Note 23)     0    
Carrying value, Liquidation of subsidiaries   0      
Carrying value, Foreign currency adjustment   4,984,000 (6,959,000) (1,043,000)  
Carrying value, Ending Balance   $ 29,153,000 $ 24,169,000 $ 37,316,000 $ 52,799,000