Leases (Tables)

6 Months Ended

Jun. 30, 2020

Leases [Abstract]

Schedule of lease cost

Weighted average remaining lease terms are as follows:

	Six Months Ended June 30,
	2020	2019
Operating leases	4.59 years	5.00 years
Finance leases	2.20 years	2.58 years

Weighted average discount rate on the Company's lease liabilities are as follows:

	Six Months Ended June 30,
	2020	2019
Operating leases	8.87%	6.57%
Finance leases	5.87%	5.79%

Schedule of finance lease liability

Maturities of the Company's lease liabilities as of June 30, 2020, per ASU 2016-02, were as follows:

	(Thousands of Dollars)
Year ending December 31,	Operating leases		Finance leases
2020	$	11,607	$	754
2021	20,783		1,374
2022	10,249		766
2023	6,994		125
2024	2,171		—
Thereafter	10,921		—
Total undiscounted remaining minimum lease payments	62,725		3,019
Less imputed interest	(10,066)		(177)
Total discounted remaining minimum lease payments	$	52,659	$	2,842

Schedule of operating lease liability

Maturities of the Company's lease liabilities as of June 30, 2020, per ASU 2016-02, were as follows:

	(Thousands of Dollars)
Year ending December 31,	Operating leases		Finance leases
2020	$	11,607	$	754
2021	20,783		1,374
2022	10,249		766
2023	6,994		125
2024	2,171		—
Thereafter	10,921		—
Total undiscounted remaining minimum lease payments	62,725		3,019
Less imputed interest	(10,066)		(177)
Total discounted remaining minimum lease payments	$	52,659	$	2,842