Concentration of Risk and Segment Data (Long-lived Assets) (Details) - USD ($) $ in Thousands	Feb. 29, 2020	Aug. 31, 2019
Segment Reporting Information [Line Items]
Long-lived assets	$ 4,397,612	$ 4,212,858
China
Segment Reporting Information [Line Items]
Long-lived assets	1,488,548	1,579,904
Mexico
Segment Reporting Information [Line Items]
Long-lived assets	404,896	418,641
Switzerland
Segment Reporting Information [Line Items]
Long-lived assets	217,065	158
Malaysia
Segment Reporting Information [Line Items]
Long-lived assets	208,576	154,386
Singapore
Segment Reporting Information [Line Items]
Long-lived assets	148,583	156,028
Taiwan
Segment Reporting Information [Line Items]
Long-lived assets	118,315	123,608
Hungary
Segment Reporting Information [Line Items]
Long-lived assets	99,435	85,809
Vietnam
Segment Reporting Information [Line Items]
Long-lived assets	93,495	85,728
Other
Segment Reporting Information [Line Items]
Long-lived assets	470,688	462,261
Foreign source revenue
Segment Reporting Information [Line Items]
Long-lived assets	3,249,601	3,066,523
U.S.
Segment Reporting Information [Line Items]
Long-lived assets	$ 1,148,011	$ 1,146,335