Largest individual client percent of total subscriptions.

No definition available.

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- Details

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Period Type:	duration

- Definition

Percentage of subscription from ten largest clients

+ References

No definition available.

+ Details

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Namespace Prefix:	fds_
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- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 4

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5074-111524

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.4)

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

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

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Data Type:	num:areaItemType
Balance Type:	na
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

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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

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The minimum amount the entity agreed to spend under the long-term purchase commitment.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717

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 3)

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

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Note 16 - Commitments and Contingencies (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2014	May 31, 2013	Aug. 31, 2013
Note 16 - Commitments and Contingencies (Details) [Line Items]
Operating Leases, Rent Expense	$ 9,700,000	$ 8,800,000	$ 28,000,000	$ 27,200,000
Operating Leases, Future Minimum Payments Due	212,105,000		212,105,000
Long-term Purchase Commitment, Amount					50,200,000
Largest Individual Client Percent Of Total Subscriptions	2.00%		2.00%
Percentage Of Subscription From Ten Largest Clients	15.00%		15.00%
Allowance for Doubtful Accounts Receivable	1,700,000		1,700,000		1,600,000
Standby Letters of Credit [Member]
Note 16 - Commitments and Contingencies (Details) [Line Items]
Long-term Line of Credit	1,800,000		1,800,000
Norwalk, Connecticut [Member]
Note 16 - Commitments and Contingencies (Details) [Line Items]
Area of Real Estate Property (in Square Feet)	193,000		193,000
Office Space [Member]
Note 16 - Commitments and Contingencies (Details) [Line Items]
Area of Real Estate Property (in Square Feet)	836,000		836,000
Lease Agreement, February 2014 [Member]
Note 16 - Commitments and Contingencies (Details) [Line Items]
Operating Leases, Future Minimum Payments Due	93,700,000		93,700,000
Lessee Leasing Arrangements, Operating Leases, Term of Contract			15 years
Mumbai, India and Austin, Texas [Member]
Note 16 - Commitments and Contingencies (Details) [Line Items]
Operating Leases, Future Minimum Payments Due	$ 2,400,000		$ 2,400,000
Additional Lease Commitments Assumed with Revere and Matrix Acqusitions [Member]
Note 16 - Commitments and Contingencies (Details) [Line Items]
Area of Real Estate Property (in Square Feet)	11,000		11,000