Supplemental Consolidated Financial Information - Valuation accounts (Details) - Allowance for doubtful accounts - USD ($) $ in Thousands |
12 Months Ended | ||
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Mar. 31, 2019 |
Mar. 31, 2018 |
Mar. 31, 2017 |
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| SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] | |||
| Balance at Beginning of Period | $ 512 | $ 228 | $ 203 |
| Charged to Income Statement | 300 | 530 | 294 |
| Charged to Allowance | (83) | 246 | 269 |
| Balance at End of Period | $ 895 | $ 512 | $ 228 |
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of valuation and qualifying accounts and reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of decrease in valuation and qualifying accounts and reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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