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Note 7 - Employee Benefit Plans | 9 Months Ended
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Sep. 30, 2019
Notes to Financial Statements |
Pension and Other Postretirement Benefits Disclosure [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 and nine months ended September 30, 2019 and 2018 (in thousands):
|  | Three Months Ended September 30, |
|  | 2019 |  |  | 2018 |
Service cost |  | $ | 1,100 |  |  | $ | 1,252 |
Interest cost |  |  | 1,620 |  |  |  | 1,377 |
Expected return on plan assets |  |  | (1,496 | ) |  |  | (1,634 | )
Amortization of prior service cost |  |  | 15 |  |  |  | 15 |
Amortization of net loss |  |  | 1,097 |  |  |  | 931 |
Net periodic pension cost |  | $ | 2,336 |  |  | $ | 1,941 |
|  | Nine Months Ended September 30, |
|  | 2019 |  |  | 2018 |
Service cost |  | $ | 3,300 |  |  | $ | 3,756 |
Interest cost |  |  | 4,860 |  |  |  | 4,131 |
Expected return on plan assets |  |  | (4,488 | ) |  |  | (4,902 | )
Amortization of prior service cost |  |  | 45 |  |  |  | 45 |
Amortization of net loss |  |  | 3,291 |  |  |  | 2,793 |
Net periodic pension cost |  | $ | 7,008 |  |  | $ | 5,823 |
For the three- and nine-month periods ended September 30, 2019 and 2018, the service cost component of net periodic pension cost is included in the same line items of our condensed consolidated financial statements as other employee compensation costs. The net expense related to all other components of net periodic pension cost of $1.2 million and $3.7 million, respectively, for the three- and nine-month periods ended September 30, 2019, and $0.7 million and $2.1 million, respectively, for the three- and nine-month periods ended September 30, 2018, is included in other (expense) income on our condensed consolidated statements of operations and comprehensive loss. In May 2019, we contributed $3.6 million in common stock to our defined benefit plans, and do not expect to make additional contributions to the plans in 2019. We expect to contribute approximately $0.6 million to our unfunded supplemental executive retirement plan during 2019.

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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