7. ACCOUNTS PAYABLE AND ACCRUED EXPENSES

12 Months Ended

Dec. 31, 2015

Payables and Accruals [Abstract]

ACCOUNTS PAYABLE AND ACCRUED EXPENSES (IN THOUSANDS)

	December 31,
	2015		2014
Accounts payable	$	52,296	$	46,855
Accrued expenses		32,950		28,809
Accrued payroll and vacation		17,692		11,937
Accrued professional fees		10,875		10,215
Total	$	113,813	$	97,816