Accrual for third party lender owned consumer loans.

No definition available.

Name:	enva_AccrualForThirdPartyLenderOwnedConsumerLoans
Namespace Prefix:	enva_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Active consumer loans.

+ References

No definition available.

+ Details

Name:	enva_ActiveConsumerLoans
Namespace Prefix:	enva_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	enva_CommitmentsAndContingenciesLineItems
Namespace Prefix:	enva_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Litigation administrative penalty.

+ References

No definition available.

+ Details

Name:	enva_LitigationAdministrativePenalty
Namespace Prefix:	enva_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Remaining term on operating lease.

+ References

No definition available.

+ Details

Name:	enva_RemainingTermOnOperatingLease
Namespace Prefix:	enva_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Rent abatements.

+ References

No definition available.

+ Details

Name:	enva_RentAbatements
Namespace Prefix:	enva_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

A general description of the nature of the existing leasing arrangements of a lessee for all operating leases including, but not limited to: (1) rental escalation clauses; (2) renewal or purchase options; (3) guarantees or indemnities, if any, (4) restrictions imposed by lease arrangements; (5) unusual provisions or conditions; (6) contingent rentals, if any; and (7) lease expiration dates.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6452660&loc=d3e36991-112694

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

-Section 55

-Paragraph 40

-Subparagraph (Note 1)

-URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697

+ Details

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

- Definition

This item represents the deferred credit for an incentive or inducement received by a lessee from a lessor, in order to motivate the lessee to enter the lease agreement, which incentive or inducement is to be recognized as a reduction of rental expense over the lease term.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 25

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=7501430&loc=d3e40010-112707

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 25

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=7501430&loc=d3e39896-112707

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Lease Incentive

-URI http://asc.fasb.org/extlink&oid=6516590

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 55

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6584307&loc=d3e41620-112719

+ Details

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

- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

+ Details

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

- Definition

Term of the lessee's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of judgment or settlement awarded to (against) the entity in respect of litigation.

+ References

No definition available.

+ Details

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

- Definition

Net rentable area for properties owned.

+ References

No definition available.

+ Details

Name:	us-gaap_NetRentableArea
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_LeaseArrangementTypeAxis=enva_NewChicagoHeadquartersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LitigationCaseAxis=enva_ConsumerFinancialProtectionBureauMember
Namespace Prefix:
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_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
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Period Type:

Commitments and Contingencies - Additional information (Details) (USD $)	12 Months Ended			0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Nov. 20, 2013	Dec. 31, 2011
Commitments And Contingencies [Line Items]
Rent Expense	$ 3,700,000us-gaap_LeaseAndRentalExpense	$ 2,700,000us-gaap_LeaseAndRentalExpense	$ 2,400,000us-gaap_LeaseAndRentalExpense
Consumer loans guaranteed by Company	36,300,000enva_ActiveConsumerLoans	41,400,000enva_ActiveConsumerLoans
Losses on consumer loans guaranteed	1,576,000	2,047,000	2,624,000		2,284,000
Administrative penalty to be paid by CNU of California, LLC	10,000enva_LitigationAdministrativePenalty
Consumer Financial Protection Bureau
Commitments And Contingencies [Line Items]
Penalty payment				5,000,000
Consumer Financial Protection Bureau \| Cash America International Inc.
Commitments And Contingencies [Line Items]
Penalty payment				2,500,000
Consumer Financial Protection Bureau \| Enova
Commitments And Contingencies [Line Items]
Penalty payment				2,500,000
Minimum
Commitments And Contingencies [Line Items]
Remaining term on operating leases	2 years
Maximum
Commitments And Contingencies [Line Items]
Remaining term on operating leases	5 years
New Chicago Headquarters
Commitments And Contingencies [Line Items]
Leased area	160,000
Lease term	12 years
Lease renew term	Two Five Year Terms
Incentive from lessor	9,800,000
Rent abatements	$ 8,500,000