Stockholders' Equity (Tables)

3 Months Ended

Nov. 30, 2019

Share-based Payment Arrangement [Abstract]

Schedule of Recognized Stock-based Compensation Expense

The Company recognized stock-based compensation expense within selling, general and administrative expense as follows (in thousands):

	Three months ended
	November 30, 2019		November 30, 2018
Restricted stock units	$	28,183	$	15,051
Employee stock purchase plan	2,040		2,198
Total	$	30,223	$	17,249

Schedule of Share-based Compensation Information

The following represents the stock-based compensation information for the period indicated (in thousands):

	Three months ended
	November 30, 2019
Unrecognized stock-based compensation expense—restricted stock units	$	79,953
Remaining weighted-average period for restricted stock units expense	1.5 years

Schedule of Common Stock Outstanding

The following represents the common stock outstanding for the periods indicated:

	Three months ended
	November 30, 2019		November 30, 2018
Common stock outstanding:
Beginning balances	153,520,380		164,588,172
Shares issued upon exercise of stock options	13,930		—
Shares issued under employee stock purchase plan	—		354
Vesting of restricted stock	1,916,740		1,686,163
Purchases of treasury stock under employee stock plans	(530,417	)	(407,447	)
Treasury shares purchased(1)	(2,620,277	)	(7,880,346	)
Ending balances	152,300,356		157,986,896

⁽¹⁾ 

In September 2019, the Company’s Board of Directors authorized the repurchase of up to $600.0 million of the Company’s common stock as part of a two-year capital allocation framework (the “2020 Share Repurchase Program”). As of November 30, 2019, 2.6 million shares had been repurchased for $96.4 million and $503.6 million remains available under the 2020 Share Repurchase Program.