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Changes in Other Comprehensive Loss (Narrative) (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2019 | Jun. 30, 2018
Reclassification out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Beginning balance net of tax |  | $ (82,514,000) | $ (83,052,000) |
Other comprehensive income (loss) before reclassification |  | (2,242,000) | (3,756,000) |
Amounts reclassified from other comprehensive loss |  | (6,152,000) | (4,100,000) |
Net current period other comprehensive income (loss) |  | (8,394,000) | (7,856,000) |
Ending balance net of tax |  | (90,908,000) | (90,908,000) |
Retirement Obligations |  |  |  |
Reclassification out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Beginning balance net of tax |  | (55,244,000) | (55,145,000) |
Other comprehensive income (loss) before reclassification |  | (113,000) | (608,000) |
Amounts reclassified from other comprehensive loss |  | 395,000 | 791,000 |
Net current period other comprehensive income (loss) |  | 282,000 | 183,000 |
Ending balance net of tax |  | (54,962,000) | (54,962,000) |
Foreign currency exchange (gain) loss |  |  |  |
Reclassification out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Beginning balance net of tax |  | (23,960,000) | (25,355,000) |
Other comprehensive income (loss) before reclassification |  | (8,470,000) | (7,075,000) |
Amounts reclassified from other comprehensive loss |  | 0 | 0 |
Net current period other comprehensive income (loss) |  | (8,470,000) | (7,075,000) |
Ending balance net of tax |  | (32,430,000) | (32,430,000) |
Change in Derivatives Qualifying as Hedges |  |  |  |
Reclassification out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Amounts reclassified from other comprehensive loss |  | (8,730,000) | (6,523,000) |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax |  | (6,547,000) | (4,891,000) |
Tax expense | Retirement Obligations |  |  |  |
Reclassification out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Amounts reclassified from other comprehensive loss |  | (134,000) | (269,000) |
Tax expense | Change in Derivatives Qualifying as Hedges |  |  |  |
Reclassification out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Amounts reclassified from other comprehensive loss |  | 2,183,000 | 1,632,000 |
Cost of products sold | Retirement Obligations |  |  |  |
Reclassification out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Amounts reclassified from other comprehensive loss | [1] | 529,000 | 1,060,000 |
Cost of products sold | Change in Derivatives Qualifying as Hedges |  |  |  |
Reclassification out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Amounts reclassified from other comprehensive loss |  | (9,000) | (11,000) |
Interest Expense [Member] | Change in Derivatives Qualifying as Hedges |  |  |  |
Reclassification out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Amounts reclassified from other comprehensive loss |  | (149,000) | (479,000) |
Foreign currency exchange (gain) loss | Change in Derivatives Qualifying as Hedges |  |  |  |
Reclassification out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Amounts reclassified from other comprehensive loss |  | (8,572,000) | (6,033,000) |
Change in Derivatives Qualifying as Hedges |  |  |  |
Reclassification out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Beginning balance net of tax |  | (3,310,000) | (2,552,000) |
Other comprehensive income (loss) before reclassification |  | 6,341,000 | 3,927,000 |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax |  | (6,547,000) | (4,891,000) |
Net current period other comprehensive income (loss) |  | (206,000) | (964,000) |
Ending balance net of tax |  | $ (3,516,000) | $ (3,516,000) |
Accounting Standards Update 2016-01 [Member] |  |  |  |
Reclassification out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption |  |  |  | $ (888,000)
[1] | 14. Changes in Accumulated Other Comprehensive Loss Changes in AOCL by component for the three and six-month period ended September 30, 2019 are as follows (in thousands):
|  | Retirement Obligations |  | Foreign Currency |  | Change in Derivatives Qualifying as Hedges |  | Total
Beginning balance net of tax |  | $ | (55,244 | ) |  | $ | (23,960 | ) |  | $ | (3,310 | ) |  | $ | (82,514 | )
Other comprehensive income (loss) before reclassification |  | (113 | ) |  | (8,470 | ) |  | 6,341 |  |  | (2,242 | )
Amounts reclassified from other comprehensive loss |  | 395 |  |  | — |  |  | (6,547 | ) |  | (6,152 | )
Net current period other comprehensive income (loss) |  | 282 |  |  | (8,470 | ) |  | (206 | ) |  | (8,394 | )
Ending balance net of tax |  | $ | (54,962 | ) |  | $ | (32,430 | ) |  | $ | (3,516 | ) |  | $ | (90,908 | )
|  | Retirement Obligations |  | Foreign Currency |  | Change in Derivatives Qualifying as Hedges |  | Total
Beginning balance net of tax |  | $ | (55,145 | ) |  | $ | (25,355 | ) |  | $ | (2,552 | ) |  | $ | (83,052 | )
Other comprehensive income (loss) before reclassification |  | (608 | ) |  | (7,075 | ) |  | 3,927 |  |  | (3,756 | )
Amounts reclassified from other comprehensive loss |  | 791 |  |  | — |  |  | (4,891 | ) |  | (4,100 | )
Net current period other comprehensive income (loss) |  | 183 |  |  | (7,075 | ) |  | (964 | ) |  | (7,856 | )
Ending balance net of tax |  | $ | (54,962 | ) |  | $ | (32,430 | ) |  | $ | (3,516 | ) |  | $ | (90,908 | )
Details of amounts reclassified out of AOCL for the three-month period ended September 30, 2019 are as follows (in thousands):
Details of AOCL Components |  | Amount reclassified from AOCL |  | Affected line item on Condensed Consolidated Statement of Operations
Net amortization of prior service cost and pension settlement |  |  |  |  |
|  | $ | 529 |  |  | (1)
|  | 529 |  |  | Total before tax
|  | (134 | ) |  | Tax benefit
|  | $ | 395 |  |  | Net of tax
Change in derivatives qualifying as hedges |  |  |  |  |
|  | $ | (9 | ) |  | Cost of products sold
|  | (149 | ) |  | Interest expense
|  | (8,572 | ) |  | Foreign currency
|  | (8,730 | ) |  | Total before tax
|  | 2,183 |  |  | Tax expense
|  | $ | (6,547 | ) |  | Net of tax
Details of amounts reclassified out of AOCL for the six-month period ended September 30, 2019 are as follows (in thousands):
Details of AOCL Components |  | Amount reclassified from AOCL |  | Affected line item on Condensed Consolidated Statement of Operations
Net amortization of prior service cost and pension settlement |  |  |  |  |
|  | $ | 1,060 |  |  | (1)
|  | 1,060 |  |  | Total before tax
|  | (269 | ) |  | Tax benefit
|  | $ | 791 |  |  | Net of tax
Change in derivatives qualifying as hedges |  |  |  |  |
|  | $ | (11 | ) |  | Cost of products sold
|  | (479 | ) |  | Interest expense
|  | (6,033 | ) |  | Foreign currency
|  | (6,523 | ) |  | Total before tax
|  | 1,632 |  |  | Tax expense
|  | $ | (4,891 | ) |  | Net of tax
(1) These AOCL components are included in the computation of net periodic pension cost. (See Note 10 — Net Periodic Benefit Cost for additional details.)

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