Stock-Based Compensation (Tables)

3 Months Ended

Oct. 31, 2019

Share-based Payment Arrangement, Noncash Expense [Abstract]

Stock options expense

The following table summarizes expense associated with stock options during the three months ended October 31, 2019 and 2018 (in millions):

	Three Months Ended October 31,
	2019		2018
Pretax compensation expense associated with stock options	$	5.3	$	4.9
Tax benefits associated with stock options	$	1.1	$	1.1

The following table summarizes expense associated with performance-based awards during the three months ended October 31, 2019 and 2018 (in millions):

	Three Months Ended October 31,
	2019		2018
Pretax compensation expense associated with performance-based awards	$	0.9	$	1.7

Summary of stock option activity

The following table summarizes stock option activity during the three months ended October 31, 2019:

	Options Outstanding		Weighted Average Exercise Price
Outstanding as of July 31, 2019	6,531,250		$	39.66
Granted	879,541		51.61
Exercised	(389,551	)	28.71
Canceled	(17,996	)	49.98
Outstanding as of October 31, 2019	7,003,244		$	41.74

Schedule of performance shares activity

The following table summarizes performance-based award activity during the three months ended October 31, 2019:

	Performance Shares Outstanding	Weighted Average Grant Date Fair Value
Non-vested at July 31, 2019	174,100	$	52.87
Granted	100,500	51.61
Vested	—	—
Canceled/forfeited	—	—
Non-vested at October 31, 2019	274,600	$	52.41