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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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Section 50
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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- References

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

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Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment, Net [Abstract]
Property and equipment, gross	$ 86,380	$ 75,274
Accumulated depreciation	(58,633)	(53,812)
Property and equipment, net	27,747	21,462
Depreciation	$ 6,583	5,867	$ 5,352
Minimum
Property, Plant and Equipment [Line Items]
Useful life (years)	2 years
Maximum
Property, Plant and Equipment [Line Items]
Useful life (years)	12 years
Computer hardware and software
Property, Plant and Equipment, Net [Abstract]
Property and equipment, gross	$ 4,764	4,143
Computer hardware and software \| Minimum
Property, Plant and Equipment [Line Items]
Useful life (years)	3 years
Computer hardware and software \| Maximum
Property, Plant and Equipment [Line Items]
Useful life (years)	5 years
Manufacturing and lab equipment
Property, Plant and Equipment, Net [Abstract]
Property and equipment, gross	$ 59,395	50,797
Manufacturing and lab equipment \| Minimum
Property, Plant and Equipment [Line Items]
Useful life (years)	2 years
Manufacturing and lab equipment \| Maximum
Property, Plant and Equipment [Line Items]
Useful life (years)	7 years
Office equipment and furniture
Property, Plant and Equipment, Net [Abstract]
Property and equipment, gross	$ 1,462	1,127
Office equipment and furniture \| Minimum
Property, Plant and Equipment [Line Items]
Useful life (years)	5 years
Office equipment and furniture \| Maximum
Property, Plant and Equipment [Line Items]
Useful life (years)	7 years
Leasehold improvements
Property, Plant and Equipment, Net [Abstract]
Property and equipment, gross	$ 20,759	$ 19,207
Leasehold improvements \| Minimum
Property, Plant and Equipment [Line Items]
Useful life (years)	2 years
Leasehold improvements \| Maximum
Property, Plant and Equipment [Line Items]
Useful life (years)	12 years