Net Income per Share - Schedule of Numerators and Denominators of the Basic and Diluted EPS Computations for Common Stock (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Earnings Per Share [Abstract]
Net income	$ 200,309	$ 171,041	$ 428,499	$ 332,705
Basic shares:
Weighted average common shares outstanding, basic (in shares)	163,496	161,708	163,129	161,566
Diluted shares:
Weighted average common shares outstanding, basic (in shares)	163,496	161,708	163,129	161,566
Effect of potentially dilutive common shares (in shares)	4,189	2,856	4,143	2,931
Weighted average common shares outstanding, diluted (in shares)	167,685	164,564	167,272	164,497
Basic (in usd per share)	$ 1.23	$ 1.06	$ 2.63	$ 2.06
Diluted (in usd per share)	$ 1.19	$ 1.04	$ 2.56	$ 2.02

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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+ Details

- Definition

Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

+ References

+ Details

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