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Earnings Per Share and Cash Dividends - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands, shares in Millions
3 Months Ended 6 Months Ended
Jul. 31, 2025
Jul. 31, 2024
Jul. 31, 2025
Jul. 31, 2024
Dividends Payable [Line Items]        
Dilutive common stock equivalents were excluded from the computation of diluted earnings per share 1.0 0.7 1.3 0.7
Cash dividend declared and payable $ 0.35 $ 0.35 $ 0.7 $ 0.7
Dividends paid $ 7,774 $ 7,774 $ 15,557 $ 15,547
Quarterly Cash Dividend Q2 2026        
Dividends Payable [Line Items]        
Cash dividend declared and payable     $ 0.35  
Dividends paid     $ 15,600  
Quarterly Cash Dividend Q2 2025        
Dividends Payable [Line Items]        
Cash dividend declared and payable       $ 0.35
Dividends paid       $ 15,500