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Segment Information and Sales to Significant Customers - Summary of Long-lived Assets by Geographic Area (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$ 698,768	$ 607,951
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	94,149	104,918
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	182,746	211,292
Israel [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	358,329	237,561
India [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	48,326	38,706
Others [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$ 15,218	$ 15,474

X

- Definition

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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