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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-Publisher FASB
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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.

+ References

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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

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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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No definition available.

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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

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Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Jun. 02, 2014
Property and Equipment
Property and equipment, gross	$ 52,704	$ 52,108
Less: accumulated depreciation	(44,244)	(42,235)
Property and equipment, net	8,460	9,873		$ 9,580
Depreciation expense	2,200	2,500	$ 2,700
Computer equipment
Property and Equipment
Property and equipment, gross	1,434	1,434
Software
Property and Equipment
Property and equipment, gross	3,432	3,776
Furniture and fixtures
Property and Equipment
Property and equipment, gross	3,657	3,656
Laboratory equipment
Property and Equipment
Property and equipment, gross	26,315	25,603
Leasehold improvements
Property and Equipment
Property and equipment, gross	$ 17,866	$ 17,639