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Leases Leases (Tables) | 9 Months Ended
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Sep. 30, 2020
Lease Disclosure [Abstract] |
Lease, Cost [Table Text Block] | The following table presents information related to our total lease cost included in our condensed consolidated statements of income:
|  |  |  | Three Months Ended |  | Nine Months Ended
|  |  |  | September 30, |  | September 30,
( in thousands) |  | Classification |  | 2020 |  | 2019 |  | 2020 |  | 2019
Operating lease cost (1) |  | Operations expense |  | $ | 627 |  |  | $ | 638 |  |  | $ | 1,882 |  |  | $ | 1,926 |
Finance lease cost: |  |  |  |  |  |  |  |  |  |
Amortization of lease assets |  | Depreciation and amortization |  | — |  |  | — |  |  | — |  |  | 650 |
Interest on lease liabilities |  | Interest expense |  | — |  |  | — |  |  | — |  |  | 5 |
Net lease cost |  |  |  | $ | 627 |  |  | $ | 638 |  |  | $ | 1,882 |  |  | $ | 2,581 |
(1) Includes short-term leases and variable lease costs, which are immaterial
Schedule of Leases Reported on Consolidated Statement of Financial Position [Table Text Block] | The following table presents the balance and classifications of our right of use assets and lease liabilities included in our condensed consolidated balance sheet at September 30, 2020 and December 31, 2019:
(in thousands) |  | Balance sheet classification |  | September 30, 2020 |  | December 31, 2019
Assets |  |  |  |  |  |
Operating lease assets |  | Operating lease right-of-use assets |  | $ | 11,077 |  |  | $ | 11,563 |
Total lease assets |  |  |  | $ | 11,077 |  |  | $ | 11,563 |
Liabilities |  |  |  |  |  |
Current |  |  |  |  |  |
Operating lease liabilities |  | Other accrued liabilities |  | $ | 1,733 |  |  | $ | 1,705 |
Noncurrent |  |  |  |  |  |
Operating lease liabilities |  | Operating lease - liabilities |  | 9,681 |  |  | 9,896 |
Total lease liabilities |  |  |  | $ | 11,414 |  |  | $ | 11,601 |
Leases, Weighted Average Remaining Lease Term [Table Text Block] | The following table presents our weighted-average remaining lease terms and weighted-average discount rates for our operating and financing leases at September 30, 2020 and December 31, 2019:
|  | September 30, 2020 |  | December 31, 2019
Weighted-average remaining lease term (in years) |  |  |  |
Operating leases |  | 8.5 |  | 8.88
Weighted-average discount rate |  |  |  |
Operating leases |  | 3.8 | % |  | 3.8 | %
Lease, Cash Flow [Table Text Block] | The following table presents additional information related to cash paid for amounts included in the measurement of lease liabilities included in our condensed consolidated statements of cash flows as of September 30, 2020 and 2019:
|  | Nine Months Ended
|  | September 30,
(in thousands) |  | 2020 |  | 2019
Operating cash flows from operating leases |  | $ | 1,435 |  |  | $ | 1,580 |
Operating cash flows from finance leases |  | $ | — |  |  | $ | 5 |
Financing cash flows from finance leases |  | $ | — |  |  | $ | 650 |
Schedule of Maturities of Leases [Table Text Block] | The following table presents the future undiscounted maturities of our operating and financing leases at September 30, 2020 and for each of the next five years and thereafter:
(in thousands) |  | Operating Leases (1)
Remainder of 2020 |  | $ | 602 |
2021 |  | 1,984 |
2022 |  | 1,939 |
2023 |  | 1,874 |
2024 |  | 1,619 |
2025 |  | 1,383 |
Thereafter |  | 3,876 |
Total lease payments |  | $ | 13,277 |
Less: Interest |  | 1,863 |
Present value of lease liabilities |  | $ | 11,414 |
(1) Operating lease payments include $3.9 million related to options to extend lease terms that are reasonably certain of being exercised.

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 + Details
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