The useful life of acquired intangible assets, for tax purposes.

No definition available.

Name:	fcfs_AcquiredIntangibleAssetsUsefullifeTaxBasis
Namespace Prefix:	fcfs_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Accounts payable to sellers arising from business acquisition.

+ References

No definition available.

+ Details

Name:	fcfs_BusinessAcquisitionAccountsPayableToSellers
Namespace Prefix:	fcfs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Number of acquisitions grouped together for disclosure.

+ References

No definition available.

+ Details

Name:	fcfs_NumberOfAcquisitions
Namespace Prefix:	fcfs_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of stores acquired.

+ References

No definition available.

+ Details

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Namespace Prefix:	fcfs_
Data Type:	xbrli:decimalItemType
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/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

+ References

No definition available.

+ Details

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

- Details

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

- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

+ Details

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

- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

+ Details

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

- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 55

-Paragraph 37

-URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

+ Details

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

- Definition

The number of states the entity operates in as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

+ Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
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Data Type:	na
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- Details

Name:	us-gaap_StatementGeographicalAxis=country_US
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Acquisitions Narrative (Details) (USD $)	12 Months Ended	1 Months Ended	3 Months Ended
Acquisitions Narrative (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2013 store	Dec. 31, 2012	Oct. 28, 2014 store	Aug. 25, 2014 state store	Dec. 14, 2013 store	Sep. 30, 2013 store
Business Acquisition [Line Items]
Goodwill, net	$ 276,882,000us-gaap_Goodwill	$ 276,882,000us-gaap_Goodwill	$ 276,882,000us-gaap_Goodwill	$ 251,241,000us-gaap_Goodwill		$ 166,386,000us-gaap_Goodwill
Revenue of acquiree since acquisition date	19,860,000
Transaction costs	998,000	998,000	998,000
Earnings or loss of acquiree since acquisition date	952,000
United States
Business Acquisition [Line Items]
Number of states in which entity operates	13	13	13
Southeastern Acquisition [Member]
Business Acquisition [Line Items]
Number of stores acquired							15
Purchase price							25,344,000
Cash paid		300,000	23,744,000
Goodwill, net							14,890,000
Business Acquisition, Accounts payable to sellers	1,600,000	1,600,000	1,600,000
Mexico Acquisition [Member]
Business Acquisition [Line Items]
Number of stores acquired								47
Purchase price								18,481,000
Goodwill, net								6,135,000
Number of states in which entity operates								13
JoLin
Business Acquisition [Line Items]
Number of stores acquired									12
Purchase price									30,072,000
Cash paid				29,072,000
Goodwill, net									20,483,000
Acquired Intangible Assets, Useful life, Tax Basis				15 years
Business Acquisition, Accounts payable to sellers									1,000,000
Baja
Business Acquisition [Line Items]
Number of stores acquired										8
Purchase price										12,350,000
Goodwill, net										9,955,000
Valu plus Pawn
Business Acquisition [Line Items]
Number of stores acquired					19
Purchase price					69,967,000
Cash paid					68,967,000
Goodwill, net					52,334,000
Acquired Intangible Assets, Useful life, Tax Basis					15 years
Business Acquisition, Accounts payable to sellers					1,000,000
Other U.S. Acquisitions
Business Acquisition [Line Items]
Number of stores acquired	10	10	10	3
Purchase price	14,534,000	14,534,000	14,534,000	2,903,000
Cash paid	14,384,000	25,000	2,008,000	2,895,000
Goodwill, net	8,844,000	8,844,000	8,844,000	1,769,000
Number of states in which entity operates	2	2	2
Number of acquisitions	3	3	3
Business Acquisition, Accounts payable to sellers	$ 150,000	$ 150,000	$ 150,000	$ 8,000
Other U.S. Acquisitions \| United States
Business Acquisition [Line Items]
Number of states in which entity operates				3
Customer Relationships [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years