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Basis of Presentation - Schedule of Allowance for Credit Losses (Details) - USD ($) $ in Thousands | 9 Months Ended
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Sep. 30, 2021 | Sep. 30, 2020
Trade Receivables |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |
Allowance for Credit Losses, Beginning of Year | $ 84 | $ 0
Provision for Expected Credit Losses | 0 | 78
Allowance for Credit Losses, End of Period | 84 | 78
Other Receivables |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |
Allowance for Credit Losses, Beginning of Year | 3,248 | 2,463
Provision for Expected Credit Losses | 38 | 2,974
Write-off of Uncollectible Accounts | (16) | (923)
Allowance for Credit Losses, End of Period | $ 3,270 | $ 4,514

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of direct write-downs of accounts receivable charged against the allowance. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
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- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(5)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
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