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FAIR VALUE MEASUREMENTS: (Tables) | 3 Months Ended
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Sep. 30, 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 September 30,
|  | 2018 |  | 2017
|  | (Dollars in thousands)
Long-lived assets |  | $ | 1,831 |  |  | $ | 2,280 |

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