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ALLOWANCE FOR CREDIT LOSSES: (Tables) | 3 Months Ended
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Jun. 30, 2020
Credit Loss [Abstract] |
Accounts Receivable, Allowance for Credit Loss | A summary of the activity of the allowance for doubtful accounts, returns and credits was (dollars in thousands):
For the three months ended: |  | Balance at beginning of period |  | Additions charged to costs and expenses |  | Other changes |  | Bad debts written off, net of amounts recovered |  | Balance at end of period
June 30, 2020 |  | $ | 7,575 |  |  | $ | 1,330 |  |  | $ | (23) |  |  | $ | (649) |  |  | $ | 8,233 |

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- Definition Tabular disclosure of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
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Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration