Ulta Beauty, Inc. Quarterly report pursuant to Section 13 or 15(d)

Income taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Income taxes (Details) - USD ($) $ in Thousands	Jul. 30, 2022	Jul. 31, 2021	Jul. 30, 2022	Jul. 31, 2021
Income taxes
Income tax expense	$ 95,859	$ 80,989	$ 201,771	$ 155,666
Effective tax rate (as a percent)	24.50%	24.40%	24.30%	24.40%

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.