Earnings Per Share and Stock Issuances - Additional Information (Details) $ in Millions	May 31, 2018 USD ($)
Class of Stock [Line Items]
Stock repurchase program, remaining authorized repurchase amount	$ 157.0
Stock repurchase program, authorized amount	$ 600.0

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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