Paychex, Inc. Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans (Narrative) (Details)

v3.10.0.1

Employee Benefit Plans (Narrative) (Details) - USD ($) $ in Millions	2 Months Ended	10 Months Ended	12 Months Ended
	May 31, 2018	Mar. 29, 2018	May 31, 2018	May 31, 2017	May 31, 2016
Deferred Compensation Plans [Member]
Defined Contribution Plan Disclosure [Line Items]
Percentage of annual base salary and bonus that eligible employees may defer			50.00%
Percentage of Board cash compensation that eligible outside directors may defer			100.00%
Amounts accrued under deferred compensation plans	$ 18.2		$ 18.2	$ 16.7
401 (K) Plan [Member]
Defined Contribution Plan Disclosure [Line Items]
Maximum percentage of salary deferral			50.00%
Years of service to be eligible for matching contribution			1 year
Minimum number of hours worked for eligibility			1000 hours
Employer's matching contribution as a percent of the first 3% of employees' salary contributed	100.00%
Percentage of employees' salary contributed matched 100% by employer	3.00%
Employer's matching contribution as a percent of the next 2% of employees' salary contributed	50.00%
Percentage of employees' salary contributed matched 50% by employer	2.00%
Percentage of employer matching contributions of eligible employee pay		50.00%
Total percentage of employees' salary contributed matched by employer	4.00%
Company contributions to the plan			$ 23.6	$ 22.4	$ 21.4
Percentage participant directed			100.00%
401 (K) Plan [Member] \| Maximum [Member]
Defined Contribution Plan Disclosure [Line Items]
Percentage of employees' salary contributed matched by employer		8.00%

- Definition

Defined Contribution Plan Employees Eligible Pay Percent

+ References

No definition available.

+ Details

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- Definition

Defined Contribution Plan, Employer Matching Contribution, Minimum Number Of Hours Worked For Eligibility

+ References

No definition available.

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- Definition

First level of employee contributions, as a percentage of employees' gross pay, for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

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- Definition

Second level of employee contributions, as a percentage of employees' gross pay, for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

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- Definition

Employer matching contribution as a percentage of the first level of employee contributions.

+ References

No definition available.

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- Definition

Employer matching contribution as a percentage of the second level of employee contributions.

+ References

No definition available.

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- Definition

Defined Contribution Plan, Percentage Participant Directed

+ References

No definition available.

+ Details

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- Definition

Employees deferred compensation plans deferred percentage maximum.

+ References

No definition available.

+ Details

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- Definition

Outside directors deferred compensation plans deferred percentage maximum.

+ References

No definition available.

+ Details

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- Definition

Years of service to be eligible for Company match contribution

+ References

No definition available.

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- Definition

The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 710
-SubTopic 10
-Section 30
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363

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- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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- 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.

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- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

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- Definition

Percentage employer matches of the employee's percentage contribution matched.

+ References

No definition available.

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- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

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