Employee Benefit Plans (Narrative) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
May 31, 2017 |
May 31, 2016 |
May 31, 2015 |
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| 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 | $ 16.7 | $ 14.9 | |
| 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 | 41 days 16 hours | ||
| Percentage of employer matching contributions of eligible employee pay | 50.00% | ||
| Percentage of employee pay eligible for employer matching contributions | 8.00% | ||
| Company contributions to the plan | $ 22.4 | $ 21.4 | $ 19.6 |
| Percentage participant directed | 100.00% | ||
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- Definition Defined Contribution Plan, Employer Matching Contribution, Minimum Number Of Hours Worked For Eligibility No definition available.
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- Definition Defined Contribution Plan, Percentage Participant Directed No definition available.
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- Definition Employees deferred compensation plans deferred percentage maximum. No definition available.
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- Definition Outside directors deferred compensation plans deferred percentage maximum. No definition available.
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- Definition Years of service to be eligible for Company match contribution 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of the cost recognized during the period for defined contribution plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. 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. No definition available.
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- Definition Percentage employer matches of the employee's percentage contribution matched. No definition available.
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- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. No definition available.
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- Details
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- Details
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