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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Additions made to capitalized computer software costs during the period.

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Amount of expense for amortization of capitalized computer software costs.

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The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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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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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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Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Property and Equipment
Property and equipment	$ 280,693		$ 280,693		$ 251,120
Less accumulated depreciation	(225,552)		(225,552)		(203,046)
Property and equipment, net	55,141		55,141		48,074
Capitalized amount	10,900	$ 6,700	31,100	$ 20,900
Amortization expense	7,600	6,700	21,600	20,100
Internal use software	48,400		48,400		39,000
Computer equipment and software
Property and Equipment
Property and equipment	250,600		250,600		221,429
Furniture and fixtures
Property and Equipment
Property and equipment	10,217		10,217		10,238
Leasehold improvements
Property and Equipment
Property and equipment	19,876		19,876		$ 19,453
Property And Equipment
Property and Equipment
Depreciation	8,700	7,900	25,000	23,800
Cost of revenue
Property and Equipment
Depreciation	8,000	7,100	22,700	21,300
Selling, General and Administrative Expenses
Property and Equipment
Depreciation	$ 800	$ 800	$ 2,300	$ 2,500