Repurchase of Common Stock (Details) - USD ($)	May 31, 2021	May 31, 2019
Equity [Abstract]
Amount of shares authorized for purchase		$ 400,000,000
Remaining share repurchase amount	$ 79,600,000

Amount remaining of a stock repurchase plan authorized.

No definition available.

Name:	us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant