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Note 7 - Employee Benefit Plans | 3 Months Ended
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Mar. 31, 2018
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 months ended March 31, 2018 and 2017 (in thousands):
|  | Three Months Ended March 31, |
|  | 2018 |  |  | 2017 |
Service cost |  | $ | 1,252 |  |  | $ | 1,196 |
Interest cost |  |  | 1,377 |  |  |  | 1,339 |
Expected return on plan assets |  |  | (1,634 | ) |  |  | (1,462 | )
Amortization of prior service benefit |  |  | 15 |  |  |  | (84 | )
Amortization of net loss |  |  | 931 |  |  |  | 1,033 |
Net periodic benefit cost |  | $ | 1,941 |  |  | $ | 2,022 |
For the three months ended March 31, 2018, 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 of $0.7 million related to all other components of net periodic benefit cost is included in other (expense) income on our condensed consolidated statements of operations and comprehensive income (loss). For the three months ended March 31, 2017, all components of net periodic benefit cost are included in the same line items of our condensed consolidated financial statements as other employee compensation costs. In April 2018, we contributed $1.3 million in cash to our defined benefit plans, and expect to contribute an additional $2.6 million in cash or shares of our common stock to our defined benefit plans in 2018. We expect to contribute approximately $0.5 million to our unfunded supplemental executive retirement plan during 2018.

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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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