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v3.25.1

Other comprehensive income (loss) (accumulated other comprehensive loss) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Postretirement benefit plans [Member] |  |  |
Accumulated other comprehensive loss [Line Items] |  |  |
Balance, beginning of period |  | $ (16,566) | $ (19,824)
Other comprehensive income (loss) before reclassifications |  | 0 | 0
Amounts reclassified from accumulated other comprehensive loss |  | (68) | 22
Net current-period other comprehensive income (loss) |  | (68) | 22
Balance, end of period |  | (16,634) | (19,802)
Net unrealized gain on cash flow hedges [Member] |  |  |
Accumulated other comprehensive loss [Line Items] |  |  |
Balance, beginning of period |  |  | (286)
Other comprehensive income (loss) before reclassifications | [1] |  | 5,864
Amounts reclassified from accumulated other comprehensive loss |  |  | (668)
Net current-period other comprehensive income (loss) |  |  | 5,196
Balance, end of period |  |  | 4,910
Unrealized gain on cash flow hedges arising during the period, tax expense |  |  | 2,169
Currency translation adjustment [Member] |  |  |
Accumulated other comprehensive loss [Line Items] |  |  |
Balance, beginning of period |  | (13,350) | (9,918)
Other comprehensive income (loss) before reclassifications |  | (48) | (1,027)
Amounts reclassified from accumulated other comprehensive loss |  | 0 | 0
Net current-period other comprehensive income (loss) |  | (48) | (1,027)
Balance, end of period |  | (13,398) | (10,945)
Accumulated other comprehensive loss [Member] |  |  |
Accumulated other comprehensive loss [Line Items] |  |  |
Balance, beginning of period |  | (29,916) | (30,028)
Other comprehensive income (loss) before reclassifications |  | (48) | 4,837
Amounts reclassified from accumulated other comprehensive loss |  | (68) | (646)
Net current-period other comprehensive income (loss) |  | (116) | 4,191
Balance, end of period |  | $ (30,032) | $ (25,837)
[1] | Other comprehensive income before reclassifications is net of income tax expense of $2,169.

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