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Changes in Accumulated Other Comprehensive Loss (Tables) | 6 Months Ended
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Sep. 30, 2020
Equity [Abstract] |
Changes in Accumulated Other Comprehensive Loss by Component | The changes in accumulated other comprehensive loss by component for the six months ended September 30, 2020 and 2019 are as follows:
|  | Pension and Other Postretirement Benefit Items |  |  | Foreign Currency Items |  |  | Total |
Balance at April 1, 2020 |  | $ | (9,472 | ) |  | $ | (84 | ) |  | $ | (9,556 | )
Other comprehensive income before reclassifications |  |  | — |  |  |  | 155 |  |  |  | 155 |
Amounts reclassified from accumulated other comprehensive loss |  |  | 409 |  |  |  | — |  |  |  | 409 |
Net current-period other comprehensive income |  |  | 409 |  |  |  | 155 |  |  |  | 564 |
Balance at September 30, 2020 |  | $ | (9,063 | ) |  | $ | 71 |  |  | $ | (8,992 | )
|  | Pension and Other Postretirement Benefit Items |  |  | Foreign Currency Items |  |  | Total |
Balance at April 1, 2019 |  | $ | (8,947 | ) |  | $ | 114 |  |  | $ | (8,833 | )
Other comprehensive loss before reclassifications |  |  | — |  |  |  | (223 | ) |  |  | (223 | )
Amounts reclassified from accumulated other comprehensive loss |  |  | 389 |  |  |  | — |  |  |  | 389 |
Net current-period other comprehensive income (loss) |  |  | 389 |  |  |  | (223 | ) |  |  | 166 |
Balance at September 30, 2019 |  | $ | (8,558 | ) |  | $ | (109 | ) |  | $ | (8,667 | )
Reclassifications Out of Accumulated Other Comprehensive Loss by Component | The reclassifications out of accumulated other comprehensive loss by component for the three and six months ended September 30, 2020 and 2019 are as follows:
Details about Accumulated Other Comprehensive Loss Components |  | Amount Reclassified from Accumulated Other Comprehensive Loss |  |  |  | Affected Line Item in the Condensed Consolidated Statements of Income
|  | Three Months Ended |  |  |  |
|  | September 30, |  |  |  |
|  | 2020 |  |  |  | 2019 |  |  |  |
Pension and other postretirement benefit items: |  |  |  |  |  |  |  |  |  |  |  |
Amortization of actuarial loss |  | $ | (267 | ) | (1) |  | $ | (249 | ) | (1) |  | Income before provision for income taxes
|  |  | (63 | ) |  |  |  | (54 | ) |  |  | Provision for income taxes
|  | $ | (204 | ) |  |  | $ | (195 | ) |  |  | Net income
Details about Accumulated Other Comprehensive Loss Components |  | Amount Reclassified from Accumulated Other Comprehensive Loss |  |  |  | Affected Line Item in the Condensed Consolidated Statements of Income
|  | Six Months Ended |  |  |  |
|  | September 30, |  |  |  |
|  | 2020 |  |  |  | 2019 |  |  |  |
Pension and other postretirement benefit items: |  |  |  |  |  |  |  |  |  |  |  |
Amortization of actuarial loss |  | $ | (533 | ) | (1) |  | $ | (498 | ) | (1) |  | Income before provision for income taxes
|  |  | (124 | ) |  |  |  | (109 | ) |  |  | Provision for income taxes
|  | $ | (409 | ) |  |  | $ | (389 | ) |  |  | Net income
(1) | These accumulated other comprehensive loss components are included within the computation of pension and other postretirement benefit costs. See Note 9.

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