Common Shares (Tables)

6 Months Ended

Oct. 31, 2019

Stockholders' Equity Note [Abstract]

Common Shares Information

The following table sets forth common share information.

	October 31, 2019	April 30, 2019
Common shares authorized	300.0	300.0
Common shares outstanding	114.1	113.7
Treasury shares	32.4	32.8