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Stock-based Compensation Plans - Options Outstanding and Options Exercisable (Details)
 12 Months Ended
Jan. 31, 2022
$ / shares
shares
Weighted Average Exercise Price, Options Outstanding (in dollars per share) $ 42.35
Number of Stock Options, Options Outstanding (in shares) | shares 1,319,279
Weighted Average Remaining Contractual Life, Options Outstanding (Year) 4 years 4 months 24 days
Weighted Average Exercise Price, Options Exercisable (in dollars per share) $ 36.91
Number of Stock Options, Options Exercisable (in shares) | shares 856,426
Range 1 [Member]  
Range of Exercise Prices, Lower Limit (in dollars per share) $ 19.78
Range of Exercise Prices, Upper Limit (in dollars per share) 23.86
Weighted Average Exercise Price, Options Outstanding (in dollars per share) $ 22.55
Number of Stock Options, Options Outstanding (in shares) | shares 176,500
Weighted Average Remaining Contractual Life, Options Outstanding (Year) 1 year 10 months 24 days
Weighted Average Exercise Price, Options Exercisable (in dollars per share) $ 22.55
Number of Stock Options, Options Exercisable (in shares) | shares 176,500
Range 2 [Member]  
Range of Exercise Prices, Lower Limit (in dollars per share) $ 27.39
Range of Exercise Prices, Upper Limit (in dollars per share) 29.08
Weighted Average Exercise Price, Options Outstanding (in dollars per share) $ 29.08
Number of Stock Options, Options Outstanding (in shares) | shares 191,754
Weighted Average Remaining Contractual Life, Options Outstanding (Year) 3 years 2 months 12 days
Weighted Average Exercise Price, Options Exercisable (in dollars per share) $ 29.08
Number of Stock Options, Options Exercisable (in shares) | shares 176,417
Range 3 [Member]  
Range of Exercise Prices, Lower Limit (in dollars per share) $ 40.22
Range of Exercise Prices, Upper Limit (in dollars per share) 52.38
Weighted Average Exercise Price, Options Outstanding (in dollars per share) $ 40.69
Number of Stock Options, Options Outstanding (in shares) | shares 618,325
Weighted Average Remaining Contractual Life, Options Outstanding (Year) 4 years 8 months 12 days
Weighted Average Exercise Price, Options Exercisable (in dollars per share) $ 40.60
Number of Stock Options, Options Exercisable (in shares) | shares 414,713
Range 4 [Member]  
Range of Exercise Prices, Lower Limit (in dollars per share) $ 56.63
Range of Exercise Prices, Upper Limit (in dollars per share) 78.55
Weighted Average Exercise Price, Options Outstanding (in dollars per share) $ 63.59
Number of Stock Options, Options Outstanding (in shares) | shares 332,700
Weighted Average Remaining Contractual Life, Options Outstanding (Year) 6 years 1 month 6 days
Weighted Average Exercise Price, Options Exercisable (in dollars per share) $ 63.79
Number of Stock Options, Options Exercisable (in shares) | shares 88,796