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Pension and postretirement benefits (Tables) | 9 Months Ended
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Sep. 30, 2018
Pension Plans, Defined Benefit [Member] |
Schedule Of Net Benefit Costs Table Text Block |
|  | Pension Plan |  | Benefit Restoration Plans
|  | Quarters ended September 30, |  | Quarters ended September 30,
(In thousands) |  | 2018 |  | 2017 |  | 2018 |  | 2017
Other operating expenses: |  |  |  |  |  |  |  |
Interest cost | $ | 6,029 | $ | 6,120 | $ | 344 | $ | 352
Expected return on plan assets |  | (9,551) |  | (10,186) |  | (509) |  | (502)
Amortization of net loss |  | 4,716 |  | 5,053 |  | 349 |  | 411
Total net periodic pension cost (benefit) | $ | 1,194 | $ | 987 | $ | 184 | $ | 261
|  | Pension Plans |  | Benefit Restoration Plans
|  | Nine months ended September 30, |  | Nine months ended September 30,
(In thousands) |  | 2018 |  | 2017 |  | 2018 |  | 2017
Other operating expenses: |  |  |  |  |  |  |  |
Interest cost | $ | 18,086 | $ | 18,359 | $ | 1,033 | $ | 1,057
Expected return on plan assets |  | (28,653) |  | (30,557) |  | (1,527) |  | (1,508)
Amortization of net loss |  | 14,147 |  | 15,160 |  | 1,048 |  | 1,233
Total net periodic pension cost (benefit) | $ | 3,580 | $ | 2,962 | $ | 554 | $ | 782
Other Postretirement Benefit Plans Defined Benefit [Member] |
Schedule Of Net Benefit Costs Table Text Block |
|  | Postretirement Benefit Plan
|  | Quarters ended September 30, |  | Nine months ended September 30,
(In thousands) |  | 2018 |  | 2017 |  | 2018 |  | 2017
Personnel Costs: |  |  |  |  |  |  |  |
Service cost | $ | 257 | $ | 256 | $ | 771 | $ | 769
Other operating expenses: |  |  |  |  |  |  |  |
Interest cost |  | 1,390 |  | 1,426 |  | 4,171 |  | 4,277
Amortization of prior service cost |  | (868) |  | (950) |  | (2,603) |  | (2,850)
Amortization of net loss |  | 321 |  | 142 |  | 962 |  | 426
Total postretirement cost | $ | 1,100 | $ | 874 | $ | 3,301 | $ | 2,622

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Details
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