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FAIR VALUE MEASUREMENTS: (Tables)
 6 Months Ended
Dec. 31, 2018
Fair Value Disclosures [Abstract]  
Schedule of fair value impairments
The following impairments were based on fair values using Level 3 inputs:
 
 
For the Three Months Ended December 31,
 
For the Six Months Ended December 31,
 
 
2018
 
2017
 
2018
 
2017
 
 
(Dollars in thousands)
Long-lived assets
 
$
472

 
$
14,435

 
$
2,303

 
$
16,715