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Allowance for Credit Losses | 9 Months Ended
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Sep. 30, 2022
Credit Loss [Abstract] |
Allowance for Credit Losses | Note 15 — Allowance for Credit Losses We estimate current expected credit losses on our accounts receivable at each reporting date based on our credit loss history, adjusted for current factors including global economic and business conditions, offshore energy industry and market conditions, customer mix, contract payment terms and past due accounts receivable. The following table sets forth the activity in our allowance for credit losses (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2022 |  | 2021
Balance at January 1, | ​ | $ | 1,477 | ​ | $ | 3,469
Additions (reductions) (1) | ​ |  | 710 | ​ |  | (213)
Write-offs (2) | ​ | ​ | — | ​ | ​ | (1,846)
Balance at September 30, | ​ | $ | 2,187 | ​ | $ | 1,410
(1) | Additions (reductions) in allowance for credit losses reflect credit loss reserves (releases) during the respective periods. Additions during the third quarter 2022 primarily reflected adjustments to the allowance for credit losses due to increases in our expected credit losses as a result of the Alliance acquisition.
(2) | The write-offs of allowance for credit losses reflect certain receivables related to our Robotics segment that were previously reserved and subsequently deemed to be uncollectible.

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- Definition The entire disclosure for allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -URI https://asc.fasb.org/topic&trid=2196771 + Details
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