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ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2017

Payables and Accruals [Abstract]

Accounts Payable and Accrued Liabilities

Accounts payable and accrued liabilities at December 31, 2017 and 2016 consisted of the following (in thousands):

		December 31,
		2017				2016
Accrued employee related costs		$	24,901			$	9,559
Accounts payable			5,648				5,085
Accrued development costs			4,799				5,543
Other accrued liabilities			18,172				5,995
		$	53,520			$	26,182

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- Definition

Tabular disclosure of the (a) carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business (accounts payable); (b) other payables; and (c) accrued liabilities. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). An alternative caption includes accrued expenses.

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