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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2022
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ 287,674	$ 159,699	$ 310,616
Other comprehensive income (loss):
Foreign currency translation	4,448	(20,620)	(5,254)
ChChange in unrealized gains (losses) on marketable securities, net of tax	5,040	(3,185)	(2,456)
Total other comprehensive income (loss)	9,488	(23,805)	(7,710)
Comprehensive income	$ 297,162	$ 135,894	$ 302,906

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