Balance Sheet Details - Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Balance Sheet Details [Abstract]
Machinery and Equipment, Gross	$ 189,555	$ 168,204
Capitalized Computer Software, Gross	78,184	86,036
Furniture and Fixtures, Gross	44,525	41,619
Leasehold Improvements, Gross	185,225	173,689
Property, Plant and Equipment, Gross	497,489	469,548
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(327,067)	(301,366)
Property, Plant and Equipment, Net	$ 170,422	$ 168,182

Balance Sheet Details [Abstract]

No definition available.

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- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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- Definition

Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.

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- Definition

Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business 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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