Leases (Tables)

9 Months Ended

Sep. 30, 2021

Leases [Abstract]

Schedule of Supplemental Balance Sheet Information Related Leases Assets and Liabilities

The following table presents supplemental balance sheet information related to lease assets and liabilities:

(in thousands)	Classification	September 30, 2021		December 31, 2020
Assets
Operating lease assets	Other long-term assets	$	7,790	$	11,081
Finance lease assets1	Property, plant and equipment, net		9,166		7,206
Total lease assets		$	16,956	$	18,287
Liabilities
Current:
Operating lease liabilities	Accounts payable and accrued liabilities	$	2,988	$	4,304
Finance lease liabilities	Accounts payable and accrued liabilities		3,004		2,202
Noncurrent:
Operating lease liabilities	Other long-term obligations		4,873		6,835
Finance lease liabilities	Other long-term obligations		6,066		4,914
Total lease liabilities		$	16,931	$	18,255

1 Finance lease assets are presented net of accumulated amortization of $3.7 million and $1.7 million as of September 30, 2021 and December 31, 2020, respectively.

Schedule of Components of Lease Expense

The following table presents the components of lease expense:

	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands)	2021		2020		2021		2020
Operating lease costs1	$	1,156	$	1,413	$	3,769	$	4,252
Finance lease costs:
Amortization of leased assets		741		432		1,963		905
Interest on lease liabilities		60		44		162		103
Net lease costs	$	1,957	$	1,889	$	5,894	$	5,260

1 Excludes short-term leases and variable lease costs, which are immaterial.

Schedule of Supplemental Cash Flow Information Related Leases

The following table presents supplemental cash flow information related to leases:

	Nine Months Ended September 30,
(in thousands)	2021		2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	3,723	$	4,244
Operating cash flows for finance leases	$	162	$	103
Financing cash flows for finance leases	$	1,963	$	968
Leased assets exchanged for new lease liabilities:
Operating leases	$	213	$	255
Finance leases	$	3,916	$	5,630