Paychex, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Description of Business and Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Commitments and Contingencies (Details)

v2.3.0.11

Commitments and Contingencies (Details) (USD $) In Millions	3 Months Ended
Commitments and Contingencies (Details) (USD $) In Millions	Aug. 31, 2011	May 31, 2011
Commitments and Contingencies (Textuals) [Abstract]
Lines of credit outstanding	$ 0
Irrevocable standby letters of credit	47.4	47.4
Irrevocable standby letters of credit outstanding	0
Expiry date range of letters of credit	December 2011 to July 2012
Commitments to purchase capital assets	10.8	6.0
JP Morgan Chase Bank, N.A. [Member]
Lines of credit
Amount available	350
Expiration date	February 2012
Bank of America, N.A. [Member]
Lines of credit
Amount available	250
Expiration date	February 2012
PNC Bank, National Association [Member]
Lines of credit
Amount available	150
Expiration date	February 2012
Wells Fargo Bank, National Association [Member]
Lines of credit
Amount available	$ 150
Expiration date	February 2012

- Definition

Commitments and Contingencies.

+ Details

Name:	payx_CommitmentsAndContingenciesTextualsAbstract
Namespace Prefix:	payx
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Commitments to purchase capital assets.

+ Details

Name:	payx_CommitmentsToPurchaseCapitalAssets
Namespace Prefix:	payx
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Expiry date range of letters of credit.

+ Details

Name:	payx_ExpiryDateRangeOfLettersOfCredit
Namespace Prefix:	payx
Data Type:	us-types:dateStringItemType
Balance Type:	na
Period Type:	duration

- Definition

Irrevocable stand by letters of credit.

+ Details

Name:	payx_IrrevocableStandByLettersOfCredit
Namespace Prefix:	payx
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LineOfCreditFacilityAbstract
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount borrowed under the credit facility as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 22
-Article 5

+ Details

Name:	us-gaap_LineOfCreditFacilityAmountOutstanding
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Reflects when the credit facility terminates, which may be presented in a variety of ways (year, month and year, day, month and year, quarter).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 2, 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 22
-Article 5

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 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationDate
Namespace Prefix:	us-gaap
Data Type:	us-types:dateStringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 22
-Article 5

Reference 2: 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_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant