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Unaudited Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 31, 2022
Jul. 31, 2021
Jul. 31, 2022
Jul. 31, 2021
Statement of Stockholders' Equity [Abstract]        
Pension adjustments, tax $ 0 $ 803 $ 0 $ 919