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v3.25.2

Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss by Component, Net of Tax (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 31, 2025 | Jul. 31, 2024 | Jul. 31, 2025 | Jul. 31, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Beginning Balance | $ 2,431,807 | $ 2,162,334 | $ 2,471,504 | $ 2,112,540
Net current-period other comprehensive income | 2,557 | (6,315) | (15,005) | (715)
Ending Balance | 2,580,392 | 2,241,433 | 2,580,392 | 2,241,433
Foreign Currency Translation |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Beginning Balance | (30,410) | (41,674) | (46,474) | (38,376)
Other comprehensive income (loss) before reclassifications | (1,310) | 3,760 | 14,754 | 462
Amounts reclassified from accumulated other comprehensive loss | 0 | 0 | 0 | 0
Net current-period other comprehensive income | (1,310) | 3,760 | 14,754 | 462
Ending Balance | (31,720) | (37,914) | (31,720) | (37,914)
Unrealized Gains and (Losses) on Available- for-Sale Securities |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Beginning Balance | 1,332 | (3,073) | (166) | (771)
Other comprehensive income (loss) before reclassifications | (1,254) | 2,611 | (22) | 332
Amounts reclassified from accumulated other comprehensive loss | 7 | (56) | 273 | (79)
Net current-period other comprehensive income | (1,247) | 2,555 | 251 | 253
Ending Balance | 85 | (518) | 85 | (518)
Accumulated Other Comprehensive Loss |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Beginning Balance | (29,078) | (44,747) | (46,640) | (39,147)
Other comprehensive income (loss) before reclassifications | (2,564) | 6,371 | 14,732 | 794
Amounts reclassified from accumulated other comprehensive loss | 7 | (56) | 273 | (79)
Net current-period other comprehensive income | (2,557) | 6,315 | 15,005 | 715
Ending Balance | $ (31,635) | $ (38,432) | $ (31,635) | $ (38,432)

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