Line Of Credit Facility Additional Available Borrowing Capacity

No definition available.

Name:	flt_LineOfCreditFacilityAdditionalAvailableBorrowingCapacity
Namespace Prefix:	flt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(2))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentMaturityDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 1A

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentUnamortizedDiscount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
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- Details

Name:	us-gaap_VariableRateAxis=flt_FederalFundsRatePlusMember
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Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_EurodollarMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=flt_RevolvingCreditFacilityOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=flt_RevolvingCreditFacilityTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=flt_TermLoanBMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=flt_EurocurrencyRateLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=flt_TermLoanAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=flt_ReceivablesSecuritizationFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=flt_FirstAmendmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_CommercialPaperMember
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Debt - Summary of Debt Instruments (Parenthetical) (Detail) - USD ($)		9 Months Ended	12 Months Ended
	Oct. 24, 2014	Sep. 30, 2015	Dec. 31, 2014
Secured Debt [Member]
Debt Instrument [Line Items]
Amended securitization facility	$ 3,355,000,000
Additional borrowing capacity	$ 500,000,000
Minimum [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Unused facility fee, as percentage of unused portion	0.20%
Minimum [Member] \| Federal Funds Rate Plus [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
Maximum [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Unused facility fee, as percentage of unused portion	0.40%
Maximum [Member] \| Eurodollar [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Revolving A Facility [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Amended securitization facility	$ 1,000,000,000
Revolving B Facility [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Amended securitization facility	35,000,000
Term Loan B [Member]
Debt Instrument [Line Items]
Debt maturity date		Nov. 14, 2021
Line of credit facility initial borrowing, unamortized debt discount		$ 1,300,000
Term Loan B [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Amended securitization facility	$ 300,000,000
Term Loan B [Member] \| Eurocurrency Rate Loans [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Fixed interest on line of credit	3.00%
Term Loan B [Member] \| Base Rate [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Fixed interest on line of credit	2.00%
Term Loan A [Member]
Debt Instrument [Line Items]
Debt maturity date		Nov. 14, 2019
Line of credit facility initial borrowing, unamortized debt discount		$ 6,300,000
Term Loan A [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Amended securitization facility	$ 2,020,000,000
Securitization Facility [Member]
Debt Instrument [Line Items]
Amended securitization facility		$ 1,200,000,000
Unused facility fee, as percentage of unused portion		0.40%	0.40%
Program fee		One month LIBOR
Securitization Facility [Member] \| First Amendment [Member]
Debt Instrument [Line Items]
Amended securitization facility		$ 1,200,000,000
Securitization Facility [Member] \| Commercial Paper [Member]
Debt Instrument [Line Items]
Basis spread on variable rate		0.90%	0.90%
Program fee rate		0.22%	0.18%