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Long-Term Debt and Credit Lines - Exclusive of Current Installments - Additional Information (Details) - Senior Notes - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2020	Apr. 01, 2020	Feb. 01, 2020	Nov. 02, 2019
2.75% Senior Unsecured Notes Due June 15, 2021
Debt Instrument [Line Items]
Debt instrument, interest rate	2.75%
Maturity date	Jun. 15, 2021
Effective interest rate	2.76%
Unamortized debt discount	$ 44		$ 100	$ 119
2.50% Senior Unsecured Notes Due May 15, 2023
Debt Instrument [Line Items]
Debt instrument, interest rate	2.50%
Maturity date	May 15, 2023
Effective interest rate	2.51%
Unamortized debt discount	$ 111		145	156
3.50% Senior Unsecured Notes Due April 15, 2025
Debt Instrument [Line Items]
Debt instrument, interest rate	3.50%	3.50%
Maturity date	Apr. 15, 2025
Effective interest rate	3.58%
Unamortized debt discount	$ 4,461
2.25% Senior Unsecured Notes Due September 15, 2026
Debt Instrument [Line Items]
Debt instrument, interest rate	2.25%
Maturity date	Sep. 15, 2026
Effective interest rate	2.32%
Unamortized debt discount	$ 4,352		$ 4,911	$ 5,097
3.75% Senior Unsecured Notes Due April 15, 2027
Debt Instrument [Line Items]
Debt instrument, interest rate	3.75%	3.75%
Maturity date	Apr. 15, 2027
Effective interest rate	3.76%
Unamortized debt discount	$ 474
3.875% Senior Unsecured Notes Due April 15, 2030
Debt Instrument [Line Items]
Debt instrument, interest rate	3.875%	3.875%
Maturity date	Apr. 15, 2030
Effective interest rate	3.89%
Unamortized debt discount	$ 1,471
4.50% Senior Unsecured Notes Due April 15, 2050
Debt Instrument [Line Items]
Debt instrument, interest rate	4.50%	4.50%
Maturity date	Apr. 15, 2050
Effective interest rate	4.52%
Unamortized debt discount	$ 4,333