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OTHER BALANCE SHEET DETAILS (Tables)

12 Months Ended

Dec. 31, 2018

Other Balance Sheet Details [Abstract]

Summary of Inventory

Inventory consisted of the following:

	December 31,
(in thousands)	2018				2017
Raw materials	$	7,855			$	—
Work in process		2,208			491
Finished goods		801				533
Total inventory	$	10,864			$	1,024

Property and Equipment

Property and equipment, net, consisted of the following:

	December 31,
(in thousands)	2018				2017
Tenant improvements	$	19,857			$	2,019
Furniture and fixtures		2,968				1,303
Scientific equipment		28,163				26,248
Computer equipment		11,152				8,821
		62,140				38,391
Less accumulated depreciation		(28,271	)			(27,580	)
Property and equipment, net	$	33,869			$	10,811

Accounts Payable and Accrued Liabilities

Accounts payable and accrued liabilities consisted of the following:

	December 31,
(in thousands)	2018				2017
Accrued employee related costs	$	27,341			$	24,901
Accounts payable		13,801				5,648
Accrued development costs		7,069				4,799
Other accrued liabilities		38,166				18,172
Total accounts payable and accrued liabilities	$	86,377			$	53,520

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Other balance sheet details.

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Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

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