SIGNIFICANT ACCOUNTING POLICIES (Tables)

6 Months Ended

Jun. 30, 2020

SIGNIFICANT ACCOUNTING POLICIES

Schedule of change in allowance for doubtful accounts

	Six months ended June 30, 2020
	(in thousands)
Balance at beginning of period	$	5,773
Increase to allowance based on a percent of Current Period revenue		741
Adjustment based on aged receivable analysis		4,069
Charge-offs		(1,109)
Balance at June 30, 2020	$	9,474

Summary of change in asset retirement obligations

	Six months ended June 30, 2020
	(in thousands)
Balance at beginning of period	$	1,527
Accretion expense, included in depreciation and amortization expense		62
Disposals		(219)
Payments		(101)
Balance at June 30, 2020	$	1,269

Schedule of lessor income

		Three Months Ended June 30,				Six months ended June 30,
		2020		2019		2020		2019
		(in thousands)				(in thousands)
Category	Classification
Lessor income	Cost of sales	$	96	$	69	$	212	$	180
Sublease income	Lease abandonment costs and Cost of sales		335		390		736		762