Business Combination, Consideration Transferred, Net Of Cash Acquired

No definition available.

Name:	four_BusinessCombinationConsiderationTransferredNetOfCashAcquired
Namespace Prefix:	four_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Consolidation, Less Than Wholly Owned Subsidiary, Percentage

+ References

No definition available.

+ Details

Name:	four_ConsolidationLessThanWhollyOwnedSubsidiaryPercentage
Namespace Prefix:	four_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482665/350-30-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 985
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481283/985-20-50-2

+ Details

Name:	us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-5

+ Details

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

- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479328/805-10-50-2

+ Details

Name:	us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-13

+ Details

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

- Details

Name:	srt_OwnershipAxis=four_VectronSystemsAGMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=four_EigenPaymentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=four_AcquiredTechnologyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=four_MerchantRelationshipsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=four_GivexCorp.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TradeNamesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=four_VectronSystemsAGMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=four_RevelSystemsInc.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Acquisitions - Narrative (Details) - USD ($) $ in Millions					3 Months Ended
Acquisitions - Narrative (Details) - USD ($) $ in Millions	Nov. 18, 2024	Nov. 08, 2024	Jun. 14, 2024	Jun. 13, 2024	Mar. 31, 2025	Mar. 31, 2024
Business Acquisition [Line Items]
Payments to acquire businesses, net of cash acquired					$ 3.7	$ 0.0
Vectron
Business Acquisition [Line Items]
Ownership percentage, noncontrolling owner					25.00%
Eigen
Business Acquisition [Line Items]
Payments to acquire businesses, net of cash acquired	$ 115.0
Eigen \| Acquired technology
Business Acquisition [Line Items]
Weighted average life	1 year
Eigen \| Merchant relationships
Business Acquisition [Line Items]
Weighted average life	15 years
Givex
Business Acquisition [Line Items]
Payments to acquire businesses, net of cash acquired		$ 127.8
Givex \| Acquired technology
Business Acquisition [Line Items]
Weighted average life		10 years
Givex \| Merchant relationships
Business Acquisition [Line Items]
Weighted average life		15 years
Givex \| Trade Names
Business Acquisition [Line Items]
Weighted average life		3 years
Vectron
Business Acquisition [Line Items]
Business acquisition, percentage of voting interests acquired					75.00%
Business combination, consideration transferred, net of cash acquired			$ 62.7
Consolidation, less than wholly owned subsidiary, percentage					100.00%
Vectron \| Acquired technology
Business Acquisition [Line Items]
Weighted average life			6 years 3 months 18 days
Vectron \| Merchant relationships
Business Acquisition [Line Items]
Weighted average life			12 years 4 months 24 days
Vectron \| Trade Names
Business Acquisition [Line Items]
Weighted average life			7 years
Revel
Business Acquisition [Line Items]
Payments to acquire businesses, net of cash acquired				$ 245.3
Business acquisition, percentage of voting interests acquired				100.00%
Revel \| Acquired technology
Business Acquisition [Line Items]
Weighted average life				3 years
Revel \| Merchant relationships
Business Acquisition [Line Items]
Weighted average life				10 years
Revel \| Trade Names
Business Acquisition [Line Items]
Weighted average life				3 years