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v3.25.2

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Jun. 30, 2025 | Jun. 30, 2024
Accumulated Other Comprehensive Income (Loss) Components, Net of Tax [Roll Forward] |  |
Equity, Attributable to Parent, Beginning Balance | $ 7,498,143 |
Foreign currency translation | 2,420 | $ 204
Unrealized net gain on investments | 27,232 | 5,413
Change in fair value of cash flow hedges | 4,766 | 1,905
Amounts reclassified into earnings on hedging activities | 4,232 | 1,075
Other comprehensive income (loss) | 29,118 | 8,597
Equity, Attributable to Parent, Ending Balance | 7,660,768 |
Foreign Currency Translation [Member] |  |
Accumulated Other Comprehensive Income (Loss) Components, Net of Tax [Roll Forward] |  |
Equity, Attributable to Parent, Beginning Balance | (57,540) | (53,707)
Foreign currency translation | 2,420 | 204
Other comprehensive income (loss) | 2,420 | 204
Equity, Attributable to Parent, Ending Balance | (55,120) | (53,911)
Unrealized Net Gain on Investments [Member] |  |
Accumulated Other Comprehensive Income (Loss) Components, Net of Tax [Roll Forward] |  |
Equity, Attributable to Parent, Beginning Balance | (174,320) | (176,883)
Unrealized net gain on investments | 27,232 | 5,413
Other comprehensive income (loss) | 27,232 | 5,413
Equity, Attributable to Parent, Ending Balance | (147,088) | (182,296)
Fair Value of Cash Flow Hedges |  |
Accumulated Other Comprehensive Income (Loss) Components, Net of Tax [Roll Forward] |  |
Equity, Attributable to Parent, Beginning Balance | (56) | 6,330
Change in fair value of cash flow hedges | 4,766 | 1,905
Amounts reclassified into earnings on hedging activities | 4,232 | 1,075
Other comprehensive income (loss) | 534 | 2,980
Equity, Attributable to Parent, Ending Balance | (590) | 3,350
Postretirement Benefit Obligation Gain [Member] |  |
Accumulated Other Comprehensive Income (Loss) Components, Net of Tax [Roll Forward] |  |
Equity, Attributable to Parent, Beginning Balance | 2,602 | 1,044
Equity, Attributable to Parent, Ending Balance | 2,602 | 1,044
Accumulated Other Comprehensive Income (Loss) [Member] |  |
Accumulated Other Comprehensive Income (Loss) Components, Net of Tax [Roll Forward] |  |
Equity, Attributable to Parent, Beginning Balance | (229,314) | (223,216)
Foreign currency translation | 2,420 | 204
Unrealized net gain on investments | 27,232 | 5,413
Change in fair value of cash flow hedges | 4,766 | 1,905
Amounts reclassified into earnings on hedging activities | 4,232 | 1,075
Equity, Attributable to Parent, Ending Balance | $ (200,196) | $ (231,813)

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- Definition Amount, before tax and after reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness, attributable to parent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-11 + Details
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- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 10A -Subparagraph (a) -SubTopic 10 -Topic 220 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-10A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 + Details
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