XML 44 R28.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Stock-Based Compensation Plans (Tables) | 12 Months Ended
--- | ---
May 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Weighted-Average Assumptions |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Year ended May 31,
﻿ |  | 2014 |  | 2016 |  | 2015 |  | 2014
﻿ |  | Performance stock options |  | Stock options
﻿Risk-free interest rate |  |  | 1.5 | % |  |  | 1.9 | % |  |  | 2.1 | % |  |  | 2.0 | %
﻿Dividend yield |  |  | 3.9 | % |  |  | 3.6 | % |  |  | 3.7 | % |  |  | 4.1 | %
﻿Volatility factor |  |  | 0.20 |  |  |  | 0.18 |  |  |  | 0.21 |  |  |  | 0.22 |
﻿Expected option life in years |  |  | 4.5 |  |  |  | 6.1 |  |  |  | 6.0 |  |  |  | 6.4 |
﻿Weighted-average grant-date fair value of stock options granted (per share) |  | $ | 3.85 |  |  | $ | 5.25 |  |  | $ | 5.68 |  |  | $ | 4.90 |
﻿
Stock Option Activity |
﻿ |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  | Weighted- |  |  |
﻿ |  |  |  | Weighted- |  | average |  |  |
﻿ |  | Shares |  | average |  | remaining |  | Aggregate
﻿ |  | subject |  | exercise price |  | contractual |  | intrinsic
﻿In millions, except per share amounts |  | to options |  | per share |  | term (years) |  | value(1)
﻿Outstanding as of May 31, 2015 |  | 4.7 |  | $ | 35.21 |  |  |  |  |
﻿Granted |  | 0.8 |  | $ | 47.42 |  |  |  |  |
﻿Exercised |  | (0.9) |  | $ | 34.77 |  |  |  |  |
﻿Forfeited |  | (0.1) |  | $ | 38.46 |  |  |  |  |
﻿Expired |  | — |  | $ | 35.89 |  |  |  |  |
﻿Outstanding as of May 31, 2016 |  | 4.5 |  | $ | 37.42 |  | 6.3 |  | $ | 75.9
﻿Exercisable as of May 31, 2016 |  | 2.6 |  | $ | 33.84 |  | 4.9 |  | $ | 53.1
﻿
| (1) |  | Market price of the underlying stock as of May 31, 2016 less the exercise price.
﻿
Other Information Pertaining to Stock Option Grants |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | Year ended May 31,
﻿In millions, except per share amounts |  | 2016 |  | 2015 |  | 2014
﻿Total intrinsic value of stock options exercised |  | $ | 14.5 |  | $ | 17.6 |  | $ | 18.9
﻿Total grant-date fair value of stock options vested |  | $ | 4.0 |  | $ | 3.6 |  | $ | 3.0
﻿
RSU Activity |
﻿ |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  | Weighted- |  |  |
﻿ |  |  |  | Weighted- |  | average |  |  |
﻿ |  |  |  | average |  | remaining |  |  |
﻿ |  |  |  | grant-date |  | vesting |  | Aggregate
﻿ |  |  |  | fair value |  | period |  | intrinsic
﻿In millions, except per share amounts |  | RSUs |  | per share |  | (years) |  | value(1)
﻿Nonvested as of May 31, 2015 |  | 1.8 |  | $ | 33.57 |  |  |  |  |
﻿Granted |  | 0.7 |  | $ | 42.60 |  |  |  |  |
﻿Vested |  | (0.5) |  | $ | 31.34 |  |  |  |  |
﻿Forfeited |  | (0.2) |  | $ | 35.97 |  |  |  |  |
﻿Nonvested as of May 31, 2016 |  | 1.8 |  | $ | 37.58 |  | 3.0 |  | $ | 96.5
﻿
| (1) |  | Intrinsic value for RSUs is the market price of the underlying stock as of May 31, 2016.
﻿
Other Information Pertaining to RSUs |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | Year ended May 31,
﻿In millions, except per share amounts |  | 2016 |  | 2015 |  | 2014
﻿Weighted-average grant-date fair value of RSUs granted |  | $ | 42.60 |  | $ | 36.64 |  | $ | 36.37
﻿Total intrinsic value of RSUs vested |  | $ | 25.9 |  | $ | 21.7 |  | $ | 18.3
﻿Total grant-date fair value of RSUs vested |  | $ | 17.3 |  | $ | 14.8 |  | $ | 12.1
﻿
Restricted Stock Activity |
﻿ |  |  |  |  |
﻿ |  |  |  |  |
﻿ |  |  |  | Weighted-
﻿ |  |  |  | average
﻿ |  |  |  | grant-date
﻿ |  | Restricted |  | fair value
﻿In millions, except per share amounts |  | shares |  | per share
﻿Nonvested as of May 31, 2015 |  | 0.2 |  | $ | 38.99
﻿Granted |  | — |  | $ | 47.46
﻿Vested |  | (0.1) |  | $ | 37.70
﻿Forfeited |  | — |  | $ | 40.54
﻿Nonvested as of May 31, 2016 |  | 0.1 |  | $ | 43.99
﻿
Other Information Pertaining to Restricted Stock |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | Year ended May 31,
﻿In millions, except per share amounts |  | 2016 |  | 2015 |  | 2014
﻿Weighted-average grant-date fair value of restricted stock granted |  | $ | 47.46 |  | $ | 41.70 |  | $ | 38.53
﻿Total grant-date fair value of restricted stock vested |  | $ | 3.0 |  | $ | 3.5 |  | $ | 3.3
﻿
Performance Share Activity |
﻿ |  |  |  |  |
﻿ |  |  |  |  |
﻿ |  |  |  | Weighted-
﻿ |  |  |  | average
﻿ |  |  |  | grant-date
﻿ |  | Performance |  | fair value
﻿In millions, except per share amounts |  | shares |  | per share
﻿Nonvested as of May 31, 2015 |  | 0.6 |  | $ | 34.24
﻿Granted (1) |  | 0.1 |  | $ | 42.48
﻿Vested |  | (0.2) |  | $ | 29.10
﻿Forfeited |  | — |  | $ | 37.09
﻿Nonvested as of May 31, 2016 |  | 0.5 |  | $ | 38.89
﻿
| (1) |  | Performance shares granted assuming achievement of performance goals at target. Actual amount of shares to be earned may differ from this amount.
﻿
Performance Awards [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Stock Option Activity |
﻿ |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  | Weighted- |  |  |
﻿ |  |  |  | Weighted- |  | average |  |  |
﻿ |  | Shares |  | average |  | remaining |  | Aggregate
﻿ |  | subject |  | exercise price |  | contractual |  | intrinsic
﻿In millions, except per share amounts |  | to options |  | per share |  | term (years) |  | value(1)
﻿Outstanding as of May 31, 2015 |  | 2.7 |  | $ | 31.31 |  |  |  |  |
﻿Granted |  | — |  | $ | — |  |  |  |  |
﻿Exercised |  | (0.1) |  | $ | 31.11 |  |  |  |  |
﻿Forfeited |  | (0.1) |  | $ | 29.85 |  |  |  |  |
﻿Expired |  | — |  | $ | — |  |  |  |  |
﻿Outstanding as of May 31, 2016 |  | 2.5 |  | $ | 31.36 |  | 5.4 |  | $ | 57.9
﻿Exercisable as of May 31, 2016 |  | 0.4 |  | $ | 31.22 |  | 5.2 |  | $ | 9.6
﻿
| (1) |  | Market price of the underlying stock as of May 31, 2016 less the exercise price.
﻿

X
- Definition Schedule Of Share Based Compensation Other Information Pertaining To Restricted Stock Awards Activity [Table Text Block] + References No definition available. + Details
Name: | payx_ScheduleOfShareBasedCompensationOtherInformationPertainingToRestrictedStockAwardsActivityTableTextBlockTableTextBlock
Namespace Prefix: | payx_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of share based compensation other information pertaining to restricted stock units activity. + References No definition available. + Details
Name: | payx_ScheduleOfShareBasedCompensationOtherInformationPertainingToRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | payx_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_NonvestedRestrictedStockSharesActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in outstanding nonvested performance-based units. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfNonvestedPerformanceBasedUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the total intrinsic value of options exercised (or share units converted), share-based liabilities paid, and the total fair value of shares vested during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |