XML 41 R30.htm IDEA: XBRL DOCUMENT
v3.21.2

Employee Benefit Plans (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2021
Share-based Payment Arrangement [Abstract] |
Schedule of grants of share-based awards | During the six-month period ended June 30, 2021, the following grants of share-based awards were made under the 2005 Incentive Plan: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Grant Date | ​ | ​
​ | ​ | ​ | ​ | Fair Value | ​ | ​
Date of Grant |  | Shares/Units |  | Per Share/Unit |  | Vesting Period
January 1, 2021 (1) |  | 452,381 | ​ | $ | 4.20 |  | 33% per year over three years
January 4, 2021 (2) |  | 452,381 | ​ | $ | 5.33 |  | 100% on January 4, 2024
January 4, 2021 (3) |  | 14,249 | ​ | $ | 4.20 |  | 100% on January 1, 2023
April 1, 2021 (3) |  | 9,282 | ​ | $ | 5.05 |  | 100% on January 1, 2023
(1) | Reflects grants of restricted stock units (“RSUs”) to our executive officers.
(2) | Reflects grants of performance share units (“PSUs”) to our executive officers. These PSUs consist of two components: (i) 50% based on the performance of our common stock and (ii) 50% based on cumulative total Free Cash Flow. The grant date fair value represents the average grant date fair value of the two components.
(3) | Reflects grants of restricted stock to certain independent members of our Board of Directors (our “Board”) who have elected to take their quarterly fees in stock in lieu of cash.

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: | nonnum: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