Leases Leases (Tables)

6 Months Ended

Jun. 30, 2021

Leases [Abstract]

Lease, Cost [Table Text Block]

Lease costs represent the straight-line lease expense of ROU assets and short-term leases. The components of lease cost are classified as follows (in thousands):

	Three Months Ended June 30, 2021		Three Months Ended June 30, 2020		Six Months Ended June 30, 2021		Six Months Ended June 30, 2020
Lease Costs Included in the Asset Additions in the Condensed Consolidated Balance Sheets
Property, plant and equipment acquisitions - short-term leases	$	1,491	$	118	$	1,820	$	2,302
Property, plant and equipment acquisitions - operating leases	—		5		—		10
Total lease costs in property, plant and equipment additions	$	1,491	$	123	$	1,820	$	2,312

	Three Months Ended June 30, 2021		Three Months Ended June 30, 2020		Six Months Ended June 30, 2021		Six Months Ended June 30, 2020
Lease Costs Included in the Condensed Consolidated Statements of Operations
Lease operating expenses - short-term leases	$	618	$	650	$	1,085	$	900
Lease operating expenses - operating leases	1,106		1,433		2,270		2,870
General and administrative, net - operating leases	178		179		351		359
Total lease cost expensed	$	1,902	$	2,262	$	3,706	$	4,129

Lessee, Operating Lease, Disclosure [Table Text Block]

The lease term and the discount rate related to the Company's leases are as follows:

	June 30, 2021
Weighted-average remaining lease term (in years)	3.1
Weighted-average discount rate	4.1	%

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

As of June 30, 2021, the Company's future undiscounted cash payment obligation for its operating lease liabilities are as follows (in thousands):

	As of June 30, 2021
2021 (Remaining)	$	3,462
2022	6,443
2023	5,642
2024	742
2025	742
Thereafter	856
Total undiscounted lease payments	17,887
Present value adjustment	(1,188)
Net operating lease liabilities	$	16,699

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

Supplemental cash flow information related to leases was as follows (in thousands):

	Six Months Ended June 30, 2021		Six Months Ended June 30, 2020
Cash paid for amounts included in the measurement of lease liabilities;
Operating cash flows from operating leases	$	2,618	$	3,225
Investing cash flows from operating leases	$	—	$	10