OTHER NON-CURRENT LIABILITIES (Tables)

9 Months Ended

Sep. 30, 2019

Other Liabilities, Noncurrent [Abstract]

Schedule of other non-current liabilities

Other non-current liabilities consist of the following at the dates indicated (in thousands):

	September 30, 2019		December 31, 2018
Long-term lease liabilities (see Note 9)	$	119,323	$	—
Accrued employee benefit liabilities	27,632		28,246
Accrued environmental remediation liabilities	23,541		27,358
Deferred consideration	29,216		20,232
Asset retirement obligations	4,337		4,349
Other	7,215		4,715
Total other non-current liabilities	$	211,264	$	84,900