XML 50 R36.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Employee Benefit Plans (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Share-based Payment Arrangement [Abstract] |
Schedule of grants of share-based awards | The following grants of share-based awards were made in 2023 under the 2005 Incentive Plan: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | Grant Date | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | Fair Value | ​ | ​
Date of Grant |  | Award Type |  | Shares/Units |  | Per Share/Unit |  | Vesting Period/Vesting Date
January 1, 2023 (1) |  | RSU |  | 506,436 | ​ | $ | 7.38 |  | 33% per year over three years
January 3, 2023 (1) |  | PSU |  | 489,498 | ​ | $ | 9.26 |  | 100% on December 31, 2025
January 1, 2023 (2) |  | Restricted stock |  | 9,210 | ​ | $ | 7.38 |  | 100% on January 1, 2025
April 1, 2023 (2) |  | Restricted stock |  | 7,267 | ​ | $ | 7.74 |  | 100% on January 1, 2025
July 1, 2023 (2) |  | Restricted stock |  | 7,622 | ​ | $ | 7.38 |  | 100% on January 1, 2025
October 1, 2023 (2) |  | Restricted stock |  | 5,076 | ​ | $ | 11.17 |  | 100% on January 1, 2025
December 6, 2023 (2) |  | Restricted stock |  | 119,049 | ​ | $ | 8.82 |  | 100% on December 6, 2024
(1) | Reflects grants to our executive officers.
(2) | Reflects grants to certain independent members of our Board.
Summary of information about restricted stock | The following table summarizes information about our restricted stock: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ | ​ | 2023 | ​ | 2022 | ​ | 2021
​ | ​ | ​ | ​ | Grant Date | ​ | ​ | ​ | Grant Date | ​ | ​ | ​ | Grant Date
​ |  | Shares |  | Fair Value (1) |  | Shares |  | Fair Value (1) |  | Shares |  | Fair Value (1)
Awards outstanding at beginning of year |  | 387,628 | ​ | $ | 6.70 |  | 853,726 | ​ | $ | 5.62 |  | 1,176,951 | ​ | $ | 6.61
Granted |  | 148,224 | ​ |  | 8.68 |  | 253,358 | ​ |  | 5.33 |  | 332,841 | ​ |  | 3.59
Vested (2) |  | (342,723) | ​ |  | 7.10 |  | (719,456) | ​ |  | 4.94 |  | (656,066) | ​ |  | 6.35
Awards outstanding at end of year |  | 193,129 | ​ | $ | 7.52 |  | 387,628 | ​ | $ | 6.70 |  | 853,726 | ​ | $ | 5.62
(1) | Represents the weighted average grant date fair value, which is based on the quoted closing market price of our common stock on the trading day prior to the date of grant.
(2) | Total fair value of restricted stock that vested during the years ended December 31, 2023, 2022 and 2021 was $2.9 million, $2.9 million and $2.6 million, respectively.
Summary of information about PSU awards | The following table summarizes information about our PSU awards: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Year Ended December 31,
​ | ​ | 2023 | ​ | 2022 | ​ | 2021
​ | ​ | ​ | ​ | Grant Date | ​ | ​ | ​ | Grant Date | ​ | ​ | ​ | Grant Date
​ |  | Units |  | Fair Value (1) |  | Units |  | Fair Value (1) |  | Units |  | Fair Value (1)
PSU awards outstanding at beginning of year |  | 1,888,024 | ​ | $ | 6.25 |  | 1,381,469 | ​ | $ | 8.34 |  | 1,297,126 | ​ | $ | 9.99
Granted |  | 489,498 | ​ |  | 9.26 |  | 1,065,705 | ​ |  | 4.25 |  | 452,381 | ​ |  | 5.33
Vested |  | (369,938) | ​ |  | 13.15 |  | (559,150) | ​ |  | 7.60 |  | (368,038) | ​ |  | 10.44
PSU awards outstanding at end of year |  | 2,007,584 | ​ | $ | 5.71 |  | 1,888,024 | ​ | $ | 6.25 |  | 1,381,469 | ​ | $ | 8.34
(1) | Represents the weighted average grant date fair value.
Summary of information about RSU awards | The following table summarizes information about our RSU awards: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Year Ended December 31,
​ | ​ | 2023 | ​ | 2022 | ​ | 2021
​ | ​ | ​ | ​ | Grant Date | ​ | ​ | ​ | Grant Date | ​ | ​ | ​ | Grant Date
​ |  | Units |  | Fair Value (1) |  | Units |  | Fair Value (1) |  | Units |  | Fair Value (1)
RSU awards outstanding at beginning of year |  | 1,367,294 | ​ | $ | 3.36 |  | 452,381 | ​ | $ | 4.20 |  | — | ​ | $ | —
Granted |  | 506,436 | ​ |  | 7.38 |  | 1,065,705 | ​ |  | 3.12 |  | 452,381 | ​ |  | 4.20
Vested |  | (506,028) | ​ |  | 3.44 |  | (150,792) | ​ |  | 4.20 |  | — | ​ |  | —
RSU awards outstanding at end of year |  | 1,367,702 | ​ | $ | 4.82 |  | 1,367,294 | ​ | $ | 3.36 |  | 452,381 | ​ | $ | 4.20
(1) | Represents the weighted average grant date fair value, which is based on the quoted closing market price of our common stock on the trading day prior to the date of grant.

X
- Definition Disclosure of share-based awards granted to executives, non-executive employees and independent members of our Board. + References No definition available. + Details
Name: | hlx_ScheduleOfGrantsOfShareBasedAwardsTableTextBlock
Namespace Prefix: | hlx_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
Name: | us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average grant date fair value for outstanding performance shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Subparagraph (c) -Paragraph 2 -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationPerformanceSharesAwardOutstandingActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration