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Subsequent Event
12 Months Ended
Jan. 31, 2019
Subsequent Events [Abstract]  
Subsequent events
Subsequent Event
Dividends Declared
The Board of Directors approved, effective February 19, 2019, the fiscal 2020 annual dividend of $2.12 per share, an increase over the fiscal 2019 dividend of $2.08 per share. For fiscal 2020, the annual dividend will be paid in four quarterly installments of $0.53 per share, according to the following record and payable dates:
Record Date
  
Payable Date
March 15, 2019
  
April 1, 2019
May 10, 2019
  
June 3, 2019
August 9, 2019
  
September 3, 2019
December 6, 2019
  
January 2, 2020