Accounts Payable, Accrued Liabilities and Long-Term Liabilities

3 Months Ended

Mar. 31, 2020

Payables and Accruals [Abstract]

Accounts Payable, Accrued Liabilities and Long-Term Liabilities

Accounts Payable, Accrued Liabilities and Long-Term Liabilities

Accounts payable and accrued liabilities consisted of the following (in thousands):

	March 31,		December 31,
	2020		2019
Accounts payable	$	9,587	$	16,367
Accrued clinical expense	35,327		21,290
Accrued development and other expense	6,171		2,510
Accrued compensation and benefits	4,365		7,915
	$	55,450	$	48,082

The long-term liabilities balance of $1.2 million as of March 31, 2020, and of $1.0 million as of December 31, 2019, consisted primarily of clinical trial-related liabilities.