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Composition of Certain Financial Statement Captions (Property And Equipment) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Property and Equipment [Line Items]
Property and equipment, gross	$ 644,036		$ 645,398
Less: Accumulated depreciation	(475,832)		(474,034)
Property and Equipment, net	168,204		171,364
Depreciation expense	8,389	$ 8,531
Buildings
Property and Equipment [Line Items]
Property and equipment, gross	216,968		216,968
Equipment
Property and Equipment [Line Items]
Property and equipment, gross	190,071		193,096
Land
Property and Equipment [Line Items]
Property and equipment, gross	26,450		26,450
Purchased software
Property and Equipment [Line Items]
Property and equipment, gross	166,848		165,348
Furniture and fixtures
Property and Equipment [Line Items]
Property and equipment, gross	23,053		23,025
Leasehold improvements
Property and Equipment [Line Items]
Property and equipment, gross	19,857		19,827
Construction in progress
Property and Equipment [Line Items]
Property and equipment, gross	$ 789		$ 684

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.

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