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Note 7 - Employee Benefit Plans | 3 Months Ended
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Mar. 31, 2020
Notes to Financial Statements |
Retirement Benefits [Text Block] | Note 7. Employee Benefit Plans We sponsor defined benefit pension plans covering substantially all U.S. employees. Net periodic pension cost for the plans consisted of the following for the three months ended March 31, 2020 and 2019 (in thousands):
|  | Three Months Ended March 31, |
|  | 2020 |  |  | 2019 |
Service cost |  | $ | 1,334 |  |  | $ | 1,100 |
Interest cost |  |  | 1,404 |  |  |  | 1,620 |
Expected return on plan assets |  |  | (1,872 | ) |  |  | (1,496 | )
Amortization of prior service cost |  |  | 29 |  |  |  | 15 |
Amortization of net loss |  |  | 1,163 |  |  |  | 1,097 |
Net periodic pension cost |  | $ | 2,058 |  |  | $ | 2,336 |
The service cost component of net periodic benefit cost is included in the same line items of our condensed consolidated financial statements as other employee compensation costs, and the net expense for the three months ended March 31, 2020 and 2019 of $0.7 million and $1.2 million, respectively, related to all other components of net periodic pension cost is included in other (expense) income on our condensed consolidated statements of operations and comprehensive (loss) income. In April 2020, we contributed $0.4 million in shares of our common stock to our defined benefit plans, and expect to contribute an additional $5.8 million in cash or shares of our common stock in 2020. We expect to contribute approximately $0.6 million to our unfunded supplemental executive retirement plan during 2020.

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