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v3.22.2.2

Comprehensive Income - Changes in Each Component of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2022 | Oct. 31, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance |  |  | $ 1,544,346 |
Unrealized (losses) gains arising during the period | $ (28,275) | $ (7,023) | (44,585) | $ (15,388)
Reclassification of realized net losses to net income | 54 | 336 | 105 | 678
Ending balance | 1,578,052 |  | 1,578,052 |
Tax effect on reclassification of realized net losses |  | 100 | 100 | 200
Tax effect on reclassification of unrealized losses | 100 |  | 100 |
Accumulated Other Comprehensive Loss |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | (108,444) | (59,843) | (92,185) | (51,820)
Ending balance | (136,665) | (66,530) | (136,665) | (66,530)
Foreign Currency Translation |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | (108,974) | (42,034) | (92,717) | (33,666)
Unrealized (losses) gains arising during the period | (28,017) | (7,017) | (44,274) | (15,385)
Reclassification of realized net losses to net income | 0 | 0 | 0 | 0
Ending balance | (136,991) | (49,051) | (136,991) | (49,051)
Deferred Compensation and Pension Plan |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | 1,012 | (17,794) | 961 | (18,135)
Unrealized (losses) gains arising during the period | 0 | 15 | 0 | 15
Reclassification of realized net losses to net income | 54 | 336 | 105 | 677
Ending balance | 1,066 | (17,443) | 1,066 | (17,443)
Unrealized Losses on Marketable Securities (2) |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | (482) | (15) | (429) | (19)
Unrealized (losses) gains arising during the period | (258) | (21) | (311) | (18)
Reclassification of realized net losses to net income | 0 | 0 | 0 | 1
Ending balance | $ (740) | $ (36) | $ (740) | $ (36)

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- Definition Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI https://asc.fasb.org/extlink&oid=124507222&loc=d3e1436-108581 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669686-108580 + Details
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