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Retirement Plans and Other Benefits - Fair Value of Plan Assets (Details)
$ in Thousands
Jan. 31, 2026
USD ($)
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense $ 408,384
Level 1  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense 55,581
Level 2  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense 352,803
Cash equivalents  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense 16,954
Cash equivalents | Level 2  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense 16,954
Equity securities  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense 121,813
Equity securities | Level 2  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense 121,813
Fixed-income securities  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense 180,552
Fixed-income securities | Level 2  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense 180,552
Real estate securities  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense 9,259
Real estate securities | Level 2  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense 9,259
Mutual funds and ETF  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense 55,581
Mutual funds and ETF | Level 1  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense 55,581
Fixed-income securities  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense 23,985
Fixed-income securities | Level 2  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense 23,985
Insurance contract  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense 158
Insurance contract | Level 2  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense 158
Other  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense 82
Other | Level 2  
Defined Benefit Plan Disclosure [Line Items]  
Net benefit expense $ 82