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Accounts Receivable (Tables) | 12 Months Ended
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Dec. 31, 2020
Receivables [Abstract] |
Summary of Accounts Receivable | Accounts receivable at December 31 consists of:
(In thousands) | 2020 |  | 2019
Trade Accounts Receivable | $ | 78,577 |  |  | $ | 131,990 |
Unbilled Recoverable Costs and Accrued Profits | 17,697 |  |  | 19,567 |
Total Receivables, Gross | 96,274 |  |  | 151,557 |
Less Allowance for Estimated Credit Losses | (3,218) |  |  | (3,559) |
Total Receivables, Net | $ | 93,056 |  |  | $ | 147,998 |
Summary of Allowance for Estimated Credit Losses Deducted from Accounts Receivable | The following table provides a roll-forward of the allowance for estimated credit losses that is deducted from accounts receivable to present the net amount expected to be collected at December 31:
(In thousands) |
Balance at December 31, 2018 | $ | 1,486 |
Bad Debt Expense, Net of Recoveries | 2,144 |
Write-off Charges Against the Allowance and Other Adjustments | (71) |
Balance at December 31, 2019 | $ | 3,559 |
Bad Debt Expense, Net of Recoveries | 1,913 |
Write-off Charges Against the Allowance and Other Adjustments | (2,254) |
Balance at December 31, 2020 | $ | 3,218 |

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + 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 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Tabular disclosure of allowance for credit loss of financing receivable, classified as noncurrent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
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