Restructuring, Severance and Related Charges (Liability Activity) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2020	May 31, 2019	May 31, 2020	May 31, 2019
Restructuring Reserve [Roll Forward]
Restructuring related charges	$ 69,150	$ 9,340	$ 144,005	$ 16,182
Employee Severance and Benefit Costs
Restructuring Reserve [Roll Forward]
Restructuring related charges	56,891	6,513	83,684	15,460
Lease Costs
Restructuring Reserve [Roll Forward]
Restructuring related charges	402	(50)	6,870	(41)
Asset Write-off Costs
Restructuring Reserve [Roll Forward]
Restructuring related charges	6,253	$ (343)	31,678	$ (3,555)
2020 Restructuring Plan
Restructuring Reserve [Roll Forward]
Balance as of beginning of period			5,931
Restructuring related charges			70,281
Asset write-off charge and other non-cash activity			(37,452)
Cash payments			(25,475)
Balance as of end of period	13,285		13,285
2020 Restructuring Plan | Employee Severance and Benefit Costs
Restructuring Reserve [Roll Forward]
Balance as of beginning of period			3,162
Restructuring related charges			31,421
Asset write-off charge and other non-cash activity			(140)
Cash payments			(24,086)
Balance as of end of period	10,357		10,357
2020 Restructuring Plan | Lease Costs
Restructuring Reserve [Roll Forward]
Balance as of beginning of period			1,980
Restructuring related charges			6,870
Asset write-off charge and other non-cash activity			(5,639)
Cash payments			(739)
Balance as of end of period	2,472		2,472
2020 Restructuring Plan | Asset Write-off Costs
Restructuring Reserve [Roll Forward]
Balance as of beginning of period			0
Restructuring related charges			31,678
Asset write-off charge and other non-cash activity			(31,678)
Cash payments			0
Balance as of end of period	0		0
2020 Restructuring Plan | Other Related Costs
Restructuring Reserve [Roll Forward]
Balance as of beginning of period			789
Restructuring related charges			312
Asset write-off charge and other non-cash activity			5
Cash payments			(650)
Balance as of end of period	$ 456		$ 456