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

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of significant accounting policies (Policies)
Notes Tables
Notes Details

Revenue - Disaggregated revenue (Details)

v3.8.0.1

Revenue - Disaggregated revenue (Details) - USD ($) $ in Thousands		3 Months Ended
	Feb. 04, 2018	May 05, 2018	Apr. 29, 2017
Disaggregated revenue
Term of refund for product returns		60 days
Minimum term that loyalty program points are valid		1 year
Net sales		$ 1,543,667	$ 1,314,879
Sales Revenue
Disaggregated revenue
Concentration (as a percent)		100.00%	100.00%
Sales Revenue \| Cosmetics
Disaggregated revenue
Concentration (as a percent)		54.00%	54.00%
Sales Revenue \| Skincare, Bath and Fragrance
Disaggregated revenue
Concentration (as a percent)		20.00%	19.00%
Sales Revenue \| Haircare Products and Styling Tools
Disaggregated revenue
Concentration (as a percent)		17.00%	18.00%
Sales Revenue \| Salon Services
Disaggregated revenue
Concentration (as a percent)		5.00%	5.00%
Sales Revenue \| Other categories
Disaggregated revenue
Concentration (as a percent)		4.00%	4.00%
Accounting Standards Update (ASU) 2014 09, Revenue from Contracts with Customers
Disaggregated revenue
Cumulative effect reduction to opening balance of retained earnings	$ (29,980)
Retail stores
Disaggregated revenue
Net sales		$ 1,301,551	$ 1,141,873
Retail stores \| Sales Revenue
Disaggregated revenue
Concentration (as a percent)		84.00%	87.00%
E-commerce
Disaggregated revenue
Net sales		$ 154,383	$ 104,278
E-commerce \| Sales Revenue
Disaggregated revenue
Concentration (as a percent)		10.00%	8.00%
Salon services
Disaggregated revenue
Net sales		$ 75,675	$ 68,728
Salon services \| Sales Revenue
Disaggregated revenue
Concentration (as a percent)		5.00%	5.00%
Other
Disaggregated revenue
Net sales		$ 12,058
Other \| Sales Revenue
Disaggregated revenue
Concentration (as a percent)		1.00%	0.00%

- Definition

Duration of refund for sales return.

+ References

No definition available.

+ Details

Name:	ulta_DurationOfRefundForSalesReturn
Namespace Prefix:	ulta_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The expiration term of points earned through loyalty programs.

+ References

No definition available.

+ Details

Name:	ulta_ExpirationTermOfLoyaltyProgramPoints
Namespace Prefix:	ulta_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13537-108611

+ Details

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the cumulative effect on retained earnings net of related income tax effect.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22663-107794

+ Details

Name:	us-gaap_CumulativeEffectOnRetainedEarningsNetOfTax1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

Name:	us-gaap_Revenues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_SalesRevenueNetMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ProductOrServiceAxis=ulta_CosmeticsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ProductOrServiceAxis=ulta_SkincareBathAndFragranceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ProductOrServiceAxis=ulta_HaircareProductsAndStylingToolsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ProductOrServiceAxis=ulta_SalonServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ProductOrServiceAxis=ulta_OtherProductsAndServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201409Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ulta_RetailStoresMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ulta_ECommerceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ulta_SalonSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=us-gaap_AllOtherSegmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: