Leases

6 Months Ended

Jun. 30, 2020

Leases [Abstract]

Leases

LEASES

Right of Use Assets and Liabilities

        The following table summarizes quantitative information pertaining to the Company’s finance and operating leases.

	Three months ended June 30,				Six months ended June 30,
In thousands	2020		2019		2020		2019
Lease Cost
Operating lease cost	$	2,855	$	2,666	$	5,902	$	6,115
Short-term operating lease cost	$	2,310	$	3,734	$	3,828	$	6,485
Finance Lease Cost:
Amortization of leased assets	$	6,424	$	4,418	$	12,397	$	9,912
Interest on lease liabilities	920		1,142		1,925		2,249
Total finance lease cost	$	7,344	$	5,560	$	14,322	$	12,161

        Supplemental cash flow information related to leases was as follows:

	Three months ended June 30,				Six months ended June 30,
In thousands	2020		2019		2020		2019
Other Information
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	5,480	$	6,400	$	10,351	$	12,610
Operating cash flows from finance leases	$	920	$	1,142	$	1,925	$	2,249
Financing cash flows from finance leases	$	5,713	$	8,812	$	11,614	$	16,273

        Supplemental balance sheet information related to leases was as follows:

In thousands	June 30, 2020			December 31, 2019
Operating Leases
Other assets, non-current	$	42,150		$	49,169
Accrued liabilities and other	$	11,804		$	13,104
Other long-term liabilities	30,240			40,634
Total operating lease liabilities	$	42,044		$	53,738
Finance Leases
Property and equipment, gross	$	101,466		$	103,903
Accumulated depreciation	(49,803)			(42,209)
Property and equipment, net	$	51,663		$	61,694
Debt, current	$	27,176		$	22,746
Debt, non-current	34,205			45,866
Total finance lease liabilities	$	61,381		$	68,612
Weighted Average Remaining Lease Term
Weighted-average remaining lease term - finance leases	1.48			1.73
Weighted-average remaining lease term - operating leases	4.25			4.70
Weighted Average Discount Rate
Weighted-average discount rate - finance leases	5.36		%	5.40		%
Weighted-average discount rate - operating leases	5.19		%	5.20		%

        In the six months ended June 30, 2020, the Company entered into an agreement to modify one of its operating leases, significantly reducing the lease amount and lease term, thereby decreasing the operating lease liability at remeasurement. The Company recognized a gain of $4.1 million in connection with this lease modification, which is recognized in Pre-development, reclamation, and other, together with the adjustment to the right of use asset and operating lease liability.

        Minimum future lease payments under finance and operating leases with terms longer than one year are as follows:

At June 30, (In thousands)
	Operating leases		Finance leases
2020	$	6,346	$	15,686
2021	11,119		24,398
2022	10,636		17,750
2023	10,205		7,436
2024	8,605		1,690
Thereafter	—		128
Total	$	46,911	$	67,088
Less: imputed interest	(4,867)		(5,707)
Net lease obligation	$	42,044	$	61,381