XML 45 R35.htm IDEA: XBRL DOCUMENT
v3.23.3

Allowance For Credit Losses (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2023
Credit Loss [Abstract] |
Schedule of activities in allowance for credit losses and deferred tax assets | The following table sets forth the activity in our allowance for credit losses (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2023 |  | 2022
Balance at January 1, | ​ | $ | 2,277 | ​ | $ | 1,477
Additions (1) | ​ |  | 1,020 | ​ |  | 710
Balance at September 30, | ​ | $ | 3,297 | ​ | $ | 2,187
(1) | Additions in allowance for credit losses reflect credit loss reserves during the respective periods.

X
- Definition Tabular disclosure of allowance for credit loss on accounts receivable and valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance. + References No definition available. + Details
Name: | hlx_AccountsReceivableAllowanceForCreditLossAndSummaryOfValuationAllowanceTableTextBlock
Namespace Prefix: | hlx_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CreditLossAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration