XML 35 R22.htm IDEA: XBRL DOCUMENT
v3.22.4

Employee Benefits | 12 Months Ended
--- | ---
Dec. 31, 2022
Stockholders' Equity and Employee Benefit Plans Disclosure [Abstract] |
Employee Benefits | Employee BenefitsWe sponsor a 401(k) savings plan for U.S. employees and similar savings plans for certain non-U.S. employees. These plans benefit eligible employees by allowing them the opportunity to make contributions up to certain limits. We contribute by matching a percentage of each employee’s contributions. In 2020, for certain plans, the Company temporarily suspended the matching of contributions. Matching contributions were reinstated at the beginning of 2022. Subsequent to the closing of all acquisitions, employees of those acquired entities will generally be eligible to participate in the Company’s 401(k) savings plan. We also have the discretion to provide a profit sharing contribution to each participant depending on the Company’s performance for the applicable year. The expense under the Company’s retirement plan was $3.4 million and zero for the years ended December 31, 2022 and 2021, respectively.

X
- Definition Stockholders' Equity and Employee Benefit Plans Disclosure [Abstract] + References No definition available. + Details
Name: | fet_StockholdersEquityAndEmployeeBenefitPlansDisclosureAbstract
Namespace Prefix: | fet_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Stockholders' Equity and Employee Benefit Plans Disclosure [Text Block] + References No definition available. + Details
Name: | fet_StockholdersEquityAndEmployeeBenefitPlansDisclosureTextBlock
Namespace Prefix: | fet_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration