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Balance Sheet Details (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, plant and equipment, net
Property, plant and equipment, gross	$ 125,803	$ 140,306
Less accumulated depreciation and amortization	(81,089)	(83,278)
Property, plant and equipment, net	44,714	57,028
Depreciation expense	15,200	10,700	$ 13,300
Building
Property, plant and equipment, net
Property, plant and equipment, gross	0	40,320
Computer software
Property, plant and equipment, net
Property, plant and equipment, gross	50,453	26,127
Computer equipment
Property, plant and equipment, net
Property, plant and equipment, gross	36,761	37,223
Furniture and fixtures
Property, plant and equipment, net
Property, plant and equipment, gross	16,136	16,286
Leasehold improvements
Property, plant and equipment, net
Property, plant and equipment, gross	10,316	10,824
Machinery
Property, plant and equipment, net
Property, plant and equipment, gross	10,446	9,097
Construction in progress
Property, plant and equipment, net
Property, plant and equipment, gross	$ 1,691	$ 429

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- Definition

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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