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

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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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Composition of Certain Financial Statement Captions (Property And Equipment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Property and Equipment [Line Items]
Property and equipment, gross	$ 613,995		$ 613,995		$ 588,117
Less: Accumulated depreciation	(431,473)		(431,473)		(409,248)
Property and Equipment, net	182,522		182,522		178,869
Depreciation expense	8,558	$ 8,408	24,942	$ 25,141
Buildings
Property and Equipment [Line Items]
Property and equipment, gross	210,108		210,108		209,766
Equipment
Property and Equipment [Line Items]
Property and equipment, gross	175,059		175,059		153,158
Land
Property and Equipment [Line Items]
Property and equipment, gross	26,439		26,439		24,651
Purchased software
Property and Equipment [Line Items]
Property and equipment, gross	160,437		160,437		156,387
Furniture and fixtures
Property and Equipment [Line Items]
Property and equipment, gross	21,402		21,402		21,254
Leasehold improvements
Property and Equipment [Line Items]
Property and equipment, gross	19,590		19,590		21,946
Construction in progress
Property and Equipment [Line Items]
Property and equipment, gross	$ 960		$ 960		$ 955