Sale of Subsidiaries (Details) $ in Thousands		12 Months Ended
Aug. 22, 2019 USD ($) Subsidiary	Feb. 01, 2020 USD ($) Subsidiary	Feb. 02, 2019 USD ($)	Feb. 03, 2018 USD ($)
Disposal Group [Abstract]
Number of subsidiaries sold by the Company \| Subsidiary	2	2
Proceeds from sale of subsidiaries	$ 45,000
Proceeds from sale of subsidiaries, net of cash sold	40,400	$ 40,387	$ 0	$ 0
Gain on sale of subsidiaries	$ 33,800	$ 33,779	$ 0	$ 0

Disposal Group

No definition available.

Name:	dks_DisposalGroupAbstract
Namespace Prefix:	dks_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of subsidiaries sold by the Company during the period.

+ References

No definition available.

+ Details

Name:	dks_NumberOfSubsidiariesSold
Namespace Prefix:	dks_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1B
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4582445-111684

+ Details

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

- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

This element represents the cash inflow during the period from the sale of a component of the entity.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration