v3.26.1
Income Taxes - Additional Information (Detail) - USD ($)
 12 Months Ended
Feb. 10, 2023
Jan. 31, 2026
Jan. 31, 2025
Jan. 31, 2024
Income Taxes [Line Items]        
Net deferred tax assets   $ 35,622,000 $ 48,467,000  
Valuation allowance for certain other foreign and state net operating loss carryforwards   0    
Cash and cash equivalents   369,206,000 290,481,000  
Unrecognized tax benefit that, if recognized, would impact the effective tax rate   1,765,000 1,044,000  
Recognized (benefit)/expense in interest and penalties   122,000 5,878,000 $ 1,629,000
Accrued amounts for payment of interest and penalties   459,000 337,000  
Income taxes, net of amounts refunded   124,612,000 104,319,000 55,164,000
Amortization of tax credit investment   17,029,000 17,224,000 15,906,000
Income tax expense   131,978,000 97,710,000 93,933,000
Investment Tax Credit   62,120,000    
Total payment   $ 100,000,000    
Income Tax, Interest Recognition, Classification [Extensible Enumeration]   Interest Expense, Operating and Nonoperating    
U.S. Affordable Housing Real Estate Partnership        
Income Taxes [Line Items]        
Committed to invest in realestate $ 100,000,000      
Amortization of tax credit investment   $ 17,029,000 17,224,000 15,906,000
initial payment $ 20,000,000      
Income Tax Examination, Interest Expense   3,640,000 4,906,000 6,190,000
Income tax expense   23,563,000 24,110,000 $ 22,575,000
Investment period 5 years      
U.S. Federal        
Income Taxes [Line Items]        
Net deferred tax assets   12,112,000 24,557,000  
Net operating loss carryforwards, do not expire   7,471,000    
Net operating loss carryforwards   16,653,000    
Tax credit carryforwards   $ 4,402,000    
U.S. Federal | Earliest Tax Year        
Income Taxes [Line Items]        
Expiration date   2031    
Tax credit expiration date   2027    
U.S. Federal | Latest Tax Year        
Income Taxes [Line Items]        
Expiration date   2044    
Tax credit expiration date   2030    
State and Local Jurisdiction        
Income Taxes [Line Items]        
Net deferred tax assets   $ 17,743,000 18,256,000  
Foreign Jurisdictions        
Income Taxes [Line Items]        
Net deferred tax assets   5,767,000 $ 5,654,000  
Net operating loss carryforwards, expire 2019 through 2029   48,324,000    
Cash and cash equivalents   176,667,000    
Accumulated undistributed earning   $ 260,475,000