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Economic Damages Claim - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2017
Loss Contingencies [Line Items]          
Gain on economic damages claim, net $ 0 $ 0 $ 0 $ 944  
Pharmacy Segment [Member]          
Loss Contingencies [Line Items]          
Gain on economic damages claim, net         $ 944