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Composition of Certain Financial Statement Captions (Property And Equipment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 645,398	$ 621,890
Less: Accumulated depreciation	(474,034)	(440,861)
Property and Equipment, net	171,364	181,029
Depreciation expense	35,300	33,657	$ 33,481
Buildings
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	216,968	210,626
Equipment
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	193,096	179,318
Land
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	26,450	26,439
Purchased software
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	165,348	160,714
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	23,025	21,956
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	19,827	20,879
Construction in progress
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 684	$ 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.

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