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Retirement Plans - (Tables) | 9 Months Ended
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Sep. 30, 2021
Retirement Benefits [Abstract] |
Schedule of components of net periodic pension expense | Net periodic pension expense for our DB plans includes the following components:
|  |  | 3ME September 30, |  | 9ME September 30,
(in thousands) | Location of Component |  | 2021 |  | 2020 |  | 2021 |  | 2020
Service cost | Cost of revenue |  | $ | 4,293 |  |  | $ | 4,442 |  |  | $ | 13,084 |  |  | $ | 12,843 |
Interest cost | Corp G&A |  | 1,737 |  |  | 2,367 |  |  | 5,294 |  |  | 6,843 |
Expected return on assets | Corp G&A |  | (7,081) |  |  | (6,667) |  |  | (21,568) |  |  | (19,260) |
Amortization of prior service credit | Corp G&A |  | (213) |  |  | (231) |  |  | (649) |  |  | (667) |
Recognized net actuarial loss | Corp G&A |  | 1,406 |  |  | 1,204 |  |  | 4,282 |  |  | 3,476 |
Net periodic pension expense |  |  | $ | 142 |  |  | $ | 1,115 |  |  | $ | 443 |  |  | $ | 3,235 |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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