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RESTRUCTURING, IMPAIRMENT AND OTHER CHARGES: Summary of restructuring activity (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Restructuring Reserve [Roll Forward] |  |  |  |
Restructuring charges and adjustments | $ 489 | $ 2,834 | $ 491 | $ 2,831
Continuing operations |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Restructuring Reserve, at the beginning of the period |  |  | 5,829 |
Restructuring charges and adjustments |  |  | 491 |
Payments |  |  | (1,153) |
Restructuring Reserve, at the end of the period | 5,167 |  | 5,167 |
Continuing operations | Associate-related reserves |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Restructuring Reserve, at the beginning of the period |  |  | 541 |
Restructuring charges and adjustments |  |  | 848 |
Payments |  |  | (684) |
Restructuring Reserve, at the end of the period | 705 |  | 705 |
Continuing operations | Lease accruals |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Restructuring Reserve, at the beginning of the period |  |  | 5,288 |
Restructuring charges and adjustments |  |  | (357) |
Payments |  |  | (469) |
Restructuring Reserve, at the end of the period | $ 4,462 |  | $ 4,462 |

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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 + Details
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