Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Feb. 28, 2019 |
Feb. 28, 2018 |
Feb. 28, 2019 |
Feb. 28, 2018 |
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| Consolidated Statements of Stockholders' Equity [Abstract] | ||||
| Cash dividends per share | $ 0.56 | $ 0.50 | $ 1.68 | $ 1.50 |
| X | ||||||||||
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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