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Intangible Assets and Deferred Charges (Tables) | 3 Months Ended
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Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets Subject to Amortization | The balance of intangible assets subject to amortization are as follows:
(in thousands) | March 31, 2021 |  | December 31, 2020
Intangible assets, gross | $ | 30,866 |  |  | $ | 30,866 |
Accumulated amortization of intangible assets | (20,120) |  |  | (19,440) |
Intangible assets, net | $ | 10,746 |  |  | $ | 11,426 |
Schedule of Estimated Amortization Expense | Estimated amortization expense related to intangible assets for the next five years are as follows:
(in thousands) |  |  |  |
Remainder of 2021 | $ | 2,041 |  |  |  |
2022 | 2,501 |  |  |  |
2023 | 1,050 |  |  |  |
2024 | 952 |  |  |  |
2025 | 855 |  |  |  |
2026 | 758 |  |  |  |
Thereafter | 2,589 |  |  |  |
Schedule of Deferred Charges | The balance of deferred charges subject to amortization are as follows:
(in thousands) | March 31, 2021 |  | December 31, 2020
Deferred charges, gross | $ | 388 |  |  | $ | 792 |
Accumulated amortization of deferred charges | (21) |  |  | (337) |
Deferred charges, net | $ | 367 |  |  | $ | 455 |

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- Definition Tabular disclosure of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer; the aggregate carrying amount of current assets, not separately presented elsewhere in the balance sheet; and other deferred costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Tabular disclosure of the characteristics, including initial carrying value, residual amount, weighted average useful life, of finite-lived intangible assets acquired during the period by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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