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Composition of Certain Financial Statement Captions (Property And Equipment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Property and Equipment [Line Items]
Property and equipment, gross	$ 638,622		$ 638,622		$ 621,890
Less: Accumulated depreciation	(458,119)		(458,119)		(440,861)
Property and Equipment, net	180,503		180,503		181,029
Depreciation expense	8,781	$ 8,286	17,312	$ 16,384
Buildings
Property and Equipment [Line Items]
Property and equipment, gross	216,338		216,338		210,626
Equipment
Property and Equipment [Line Items]
Property and equipment, gross	188,063		188,063		179,318
Land
Property and Equipment [Line Items]
Property and equipment, gross	26,439		26,439		26,439
Purchased software
Property and Equipment [Line Items]
Property and equipment, gross	162,987		162,987		160,714
Furniture and fixtures
Property and Equipment [Line Items]
Property and equipment, gross	22,599		22,599		21,956
Leasehold improvements
Property and Equipment [Line Items]
Property and equipment, gross	21,562		21,562		20,879
Construction in progress
Property and Equipment [Line Items]
Property and equipment, gross	$ 634		$ 634		$ 1,958

X

- Definition

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

+ References

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- Definition

The expense recognized in the current period that allocates the cost of nonproduction tangible assets over their useful lives.

+ References

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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.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- 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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