LEASES (Tables)

6 Months Ended

Jun. 30, 2021

LEASES

Schedule of lease expense

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2021		2020		2021		2020
	(in thousands)
Operating lease costs	$	1,908	$	2,052	$	3,842	$	4,218
Finance lease costs:
Amortization of assets		2,782		4,784		6,796		9,507
Interest on lease liabilities		639		763		1,309		1,553
Total finance lease costs		3,421		5,547		8,105		11,060
Variable and short-term lease costs		703		284		1,286		411
Total lease costs	$	6,032	$	7,883	$	13,233	$	15,689

Schedule of supplemental balance sheet information

	June 30, 2021			December 31, 2020
Operating leases:	(dollars in thousands)
Operating leases - right-of-use assets	$	25,891		$	28,154
Current operating lease obligations		7,127			6,838
Long-term operating lease obligations		19,145			21,690
Total operating lease liabilities	$	26,272		$	28,528
Finance leases:
Property and equipment, at cost		86,114			86,281
Accumulated amortization		(28,595)			(22,991)
Property and equipment, net	$	57,519		$	63,290
Current finance lease obligations		11,852			11,655
Long-term finance lease obligations		48,397			54,482
	$	60,249		$	66,137
Weighted average remaining lease term:		(in months)			(in months)
Operating leases		54			60
Finance leases		37			43
Weighted average discount rate:
Operating leases		4.53	%		4.59	%
Finance leases		3.73	%		3.73	%

Schedule of supplemental cash flow and other information

	June 30, 2021		June 30, 2020
Cash paid for amounts included in measurement of liabilities:	(in thousands)
Operating cash flows from operating leases	$	71	$	42
Operating cash flows from finance leases		1,309		1,553
Financing cash flows from finance leases		5,888		11,366
ROU assets obtained in exchange for lease liabilities:
Operating leases	$	170	$	—
Finance leases		—		8,481