Share-based payments (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jan. 31, 2025	Feb. 02, 2024	Feb. 03, 2023
Share-based payments
Number of shares of common stock authorized for grant	11,838,143
Share-based compensation expense
Pre-tax	$ 58,738	$ 51,891	$ 72,671
Net of tax	45,933	$ 40,683	$ 56,334
Total unrecognized compensation cost	$ 85,500
Expected weighted average expense recognition period (in years)	1 year 10 months 24 days
Employees
Share-based payments
Vesting period	4 years
Director
Share-based payments
Vesting period	1 year
Stock options
Weighted average for key assumptions used in determining the fair value
Expected dividend yield (as a percent)	1.60%	1.50%	1.00%
Expected stock price volatility (as a percent)	30.40%	27.70%	25.40%
Weighted average risk-free interest rate (as a percent)	4.10%	4.10%	2.40%
Expected term of options	4 years 8 months 12 days	4 years 8 months 12 days	4 years 9 months 18 days
Options Issued
Balance at the beginning of the period (in shares)	2,413,642
Granted (in shares)	891,666
Exercised (in shares)	(101,719)
Canceled or expired (in shares)	(243,651)
Balance, at the end of the period (in shares)	2,959,938	2,413,642
Exercisable at the end of the period (in shares)	1,366,006
Average Exercise Price
Balance at the beginning of the period (in dollars per share)	$ 164.21
Granted (in dollars per share)	148.85
Exercised (in dollars per share)	100.04
Canceled or expired (in dollars per share)	178.65
Balance at the end of the period (in dollars per share)	160.6	$ 164.21
Exercisable at the end of the period (in dollars per share)	$ 159.59
Remaining Contractual Term
Balance, at the end of the period	6 years 8 months 12 days
Exercisable at the end of the period	4 years 7 months 6 days
Intrinsic Value
Balance at the end of the period	$ 28,020
Exercisable at the end of the period	$ 28,020
Weighted average grant date fair value (in dollars per share)	$ 42.06	$ 44.97	$ 52.06
Intrinsic value of options exercised	$ 4,800	$ 19,000	$ 62,700
Share-based compensation expense
Pre-tax	21,137	19,400	20,502
Net of tax	$ 16,529	$ 15,210	$ 15,893
Performance Stock Units
Share-based payments
Vesting period	3 years
Weighted average grant date fair value of awards issued (in dollars per share)	$ 154.21	$ 208.13	$ 214.25
Intrinsic Value
Balance at the end of the period	$ 5,097
Units Issued
Awards outstanding at the beginning of the period (in shares or rights)	174,160
Granted (in shares or rights)	70,010
Converted to common stock (in shares or rights)	(115,251)
Canceled (in shares or rights)	(57,189)
Awards outstanding at the end of the period (in shares or rights)	71,730	174,160
Share-based compensation expense
Pre-tax	$ 970	$ 1,732	$ 26,920
Net of tax	$ 759	$ 1,358	$ 20,868
Performance Stock Units | Minimum
Share-based payments
Performance period	1 year
Performance Stock Units | Maximum
Share-based payments
Performance period	3 years
Restricted Stock Units
Share-based payments
Weighted average grant date fair value of awards issued (in dollars per share)	$ 130.78	$ 193.78	$ 223.51
Intrinsic Value
Balance at the end of the period	$ 45,618
Units Issued
Awards outstanding at the beginning of the period (in shares or rights)	370,463
Granted (in shares or rights)	507,975
Converted to common stock (in shares or rights)	(144,713)
Canceled (in shares or rights)	(91,765)
Awards outstanding at the end of the period (in shares or rights)	641,960	370,463
Share-based compensation expense
Pre-tax	$ 36,631	$ 30,759	$ 25,249
Net of tax	$ 28,645	$ 24,115	$ 19,573
Restricted Stock Units | Employees
Share-based payments
Vesting period	3 years