ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Tables)

12 Months Ended

Dec. 31, 2018

Payables and Accruals [Abstract]

Schedule of accounts payable and accrued expenses

Accounts payable and accrued expenses were comprised of the following (in thousands):

	December 31,
	2018		2017
Accounts payable	$	68,040	$	28,538
Accrued expenses	60,958		67,298
Accrued salary and benefits	37,167		30,670
Accrued professional fees	14,863		9,303
Total	$	181,028	$	135,809