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Stock-Based Compensation - Summary of Information Related to Stock Options Outstanding (Details) | 12 Months Ended
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May 31, 2019 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number Outstanding (shares) | shares | 8,208,934
Outstanding Options, Average Remaining Option Life | 7 years 18 days
Outstanding Options, Weighted Average Exercise Price (dollars per share) | $ 123.80
Exercisable Options, Number Exercisable (shares) | shares | 1,919,976
Exercisable Options, Weighted Average Exercise Price (dollars per share) | $ 54.07
Range of Exercise Prices, Lower Range Limit (dollars per share) | 22.61
Range of Exercise Prices, Upper Range Limit (dollars per share) | $ 221.83
$22.61 - $63.45 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number Outstanding (shares) | shares | 1,938,231
Outstanding Options, Average Remaining Option Life | 3 years 11 months 16 days
Outstanding Options, Weighted Average Exercise Price (dollars per share) | $ 49.30
Exercisable Options, Number Exercisable (shares) | shares | 1,549,449
Exercisable Options, Weighted Average Exercise Price (dollars per share) | $ 45.75
Range of Exercise Prices, Lower Range Limit (dollars per share) | 22.61
Range of Exercise Prices, Upper Range Limit (dollars per share) | $ 63.45
$63.46 - $108.39 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number Outstanding (shares) | shares | 2,516,838
Outstanding Options, Average Remaining Option Life | 6 years 7 months 10 days
Outstanding Options, Weighted Average Exercise Price (dollars per share) | $ 96.18
Exercisable Options, Number Exercisable (shares) | shares | 335,335
Exercisable Options, Weighted Average Exercise Price (dollars per share) | $ 84.71
Range of Exercise Prices, Lower Range Limit (dollars per share) | 63.46
Range of Exercise Prices, Upper Range Limit (dollars per share) | $ 108.39
$108.40 - $204.48 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number Outstanding (shares) | shares | 1,696,559
Outstanding Options, Average Remaining Option Life | 8 years 2 months 23 days
Outstanding Options, Weighted Average Exercise Price (dollars per share) | $ 141.26
Exercisable Options, Number Exercisable (shares) | shares | 35,192
Exercisable Options, Weighted Average Exercise Price (dollars per share) | $ 128.42
Range of Exercise Prices, Lower Range Limit (dollars per share) | 108.40
Range of Exercise Prices, Upper Range Limit (dollars per share) | $ 204.48
$204.49 - $221.83 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number Outstanding (shares) | shares | 2,057,306
Outstanding Options, Average Remaining Option Life | 9 years 6 months 7 days
Outstanding Options, Weighted Average Exercise Price (dollars per share) | $ 213.39
Exercisable Options, Number Exercisable (shares) | shares | 0
Exercisable Options, Weighted Average Exercise Price (dollars per share) | $ 0.00
Range of Exercise Prices, Lower Range Limit (dollars per share) | 204.49
Range of Exercise Prices, Upper Range Limit (dollars per share) | $ 221.83

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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. + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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