LEASES (Tables)

12 Months Ended

Dec. 31, 2018

LEASES [ABSTRACT]

Schedule of Future Minimum Lease Payments

The future minimum rental payments and receipts required under non-cancelable operating leases as of December 31, 2018 are as follows (in thousands):

	Operating		Sub-Lease
	Leases		Income
2019	$	47,379	$	(2,624)
2020		36,045		(2,631)
2021		30,678		(276)
2022		26,584		—
2023		17,226		—
Thereafter		25,362		—
Total	$	183,274	$	(5,531)

Schedule of Change in Asset Retirement Obligation Liability

. Following is a summary of the amounts recorded (in thousands):

	Balance at								Balance at
	December 31,		Additions and						December 31,
	2017		Modifications		Accretion		Settlements		2018
ARO liability total	$	1,938	$	1,153	$	14	$	(623)	$	2,482

	Balance at								Balance at
	December 31,		Additions and						December 31,
	2016		Modifications		Accretion		Settlements		2017
ARO liability total	$	1,861	$	317	$	7	$	(247)	$	1,938