Accounts Payable and Accrued Liabilities

12 Months Ended

Dec. 31, 2019

Payables and Accruals [Abstract]

Accounts Payable and Accrued Liabilities

Accounts Payable and Accrued Liabilities

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

	December 31,
	2019		2018
Accounts payable	$	16,367	$	8,531
Accrued clinical expense	21,290		10,154
Accrued development and other expense	2,510		1,243
Accrued compensation and benefits	7,915		5,847
	$	48,082	$	25,775

The long-term liabilities balance of $1.0 million as of December 31, 2019 consisted primarily of clinical trial-related liabilities. As of December 31, 2018, the long-term liabilities of $0.7 million consisted of $0.1 million in deferred revenue and $0.6 million in other liabilities.