Leases (Tables)

3 Months Ended

Mar. 31, 2021

Leases [Abstract]

Schedule of Lease Expense, Cash Flow, Operating and Finance Lease Assets and Liabilities, Average Lease Term and Average Discount Rate

Lease expense and cash flow for the three months ended March 31, 2021 and 2020 and operating and finance lease assets and liabilities, average lease term and average discount rate as of March 31, 2021 and December 31, 2020 are as follows:

	Three Months Ended
	March 31, 2021			March 31, 2020
(Dollars in thousands)
Lease Expense
Finance lease expense:
Amortization of right-of-use assets	$	321		$	354
Interest on lease liabilities		22			22
Operating lease expense		857			845
Total lease expense	$	1,200		$	1,221
Cash Flow Components
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows from finance leases	$	22		$	22
Operating cash outflows from operating leases		932			891
Financing cash outflows from finance leases		288			292
Right-of-use assets obtained in exchange for finance lease liabilities,      net of terminations and disposals		756			148
Right-of-use assets obtained in exchange for operating lease liabilities,      net of terminations and disposals		152			65
	March 31, 2021			December 31, 2020
(Dollars in thousands, except lease term and discount rate)
Balance Sheet Information
Operating leases:
Other non-current assets	$	12,705		$	13,598
Accrued liabilities	$	(2,672	)	$	(2,868	)
Other non-current liabilities		(10,718	)		(11,513	)
Total operating lease liabilities	$	(13,390	)	$	(14,381	)
Finance leases:
Property, plant and equipment gross	$	6,506		$	5,735
Accumulated depreciation		(3,640	)		(3,319	)
Property, plant and equipment, net	$	2,866		$	2,416
Current portion of long-term debt	$	(1,240	)	$	(1,113	)
Long-term debt (less current portion)		(2,254	)		(2,275	)
Total finance lease liabilities	$	(3,494	)	$	(3,388	)
Lease Term and Discount Rates
Weighted-average remaining lease term - finance leases (years)		3.9			3.9
Weighted-average remaining lease term - operating leases (years)		5.9			6.1
Weighted-average discount rate - finance leases		2.9	%		3.0	%
Weighted-average discount rate - operating leases		3.7	%		3.8	%

Schedule of Future Minimum Rental Payments Under Finance and Operating Leases

Summarized future minimum payments under our leases as of March 31, 2021 are as follows:

	Amount
(Dollars in thousands)
Lease Maturities	Finance Leases			Operating Leases
Nine remaining months of 2021	$	1,030		$	2,412
2022		1,058			2,782
2023		647			2,418
2024		228			2,194
2025		153			2,145
Thereafter		555			2,803
Total		3,671			14,754
Less: Imputed interest		(177	)		(1,364	)
Total lease liabilities, net of interest	$	3,494		$	13,390