Business and basis of presentation (Tables)
|9 Months Ended|
Oct. 31, 2015
|Organization, Consolidation and Presentation of Financial Statements [Abstract]|
|Details of Company Operated Stores||
As of October 31, 2015, the Company operated 860 stores in 48 states, as shown in the table below. As used in these notes and throughout this Quarterly Report on Form 10-Q, all references to “we,” “us,” “our,” “Ulta,” “Ulta Beauty,” or “the Company” refer to Ulta Salon, Cosmetics & Fragrance, Inc. and its consolidated subsidiary, Ulta Inc.