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Pension and Postretirement Benefits | 9 Months Ended
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Sep. 30, 2019
Compensation And Retirement Disclosure [Abstract] |
Pension and Postretirement Benefits | Note 17. Pension and Postretirement Benefits The components of net periodic benefit cost of our pension and postretirement benefit plans for the three months ended September 30, 2019 and 2018 consist of the following:
|  | Domestic Plans |  |  |  |  |  |  |  |  |
|  | Pension Plans |  |  | Postretirement Benefit Plans |  |  | Foreign Pension Plans |
(in thousands) |  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Service cost |  | $ | 15 |  |  | $ | 13 |  |  | $ | 13 |  |  | $ | 4 |  |  | $ | 101 |  |  | $ | 138 |
Interest cost |  |  | 209 |  |  |  | 198 |  |  |  | 93 |  |  |  | 129 |  |  |  | 92 |  |  |  | 91 |
Expected return on plan assets |  |  | (35 | ) |  |  | (65 | ) |  |  | — |  |  |  | — |  |  |  | (122 | ) |  |  | (126 | )
Amortization of prior service credit |  |  | — |  |  |  | — |  |  |  | (47 | ) |  |  | (51 | ) |  |  | — |  |  |  | — |
Recognized net actuarial loss |  |  | 96 |  |  |  | 124 |  |  |  | (43 | ) |  |  | 187 |  |  |  | 37 |  |  |  | 38 |
Net periodic benefit cost |  | $ | 285 |  |  | $ | 270 |  |  | $ | 16 |  |  | $ | 269 |  |  | $ | 108 |  |  | $ | 141 |
The components of net periodic benefit cost of our pension and postretirement benefit plans for the nine months ended September 30, 2019 and 2018 consist of the following:
|  | Domestic Plans |  |  |  |  |  |  |  |  |
|  | Pension Plans |  |  | Postretirement Benefit Plans |  |  | Foreign Pension Plans |
(in thousands) |  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Service cost |  | $ | 46 |  |  | $ | 48 |  |  | $ | 48 |  |  | $ | 60 |  |  | $ | 303 |  |  | $ | 418 |
Interest cost |  |  | 646 |  |  |  | 585 |  |  |  | 343 |  |  |  | 337 |  |  |  | 281 |  |  |  | 273 |
Expected return on plan assets |  |  | (74 | ) |  |  | (145 | ) |  |  | — |  |  |  | — |  |  |  | (364 | ) |  |  | (382 | )
Amortization of prior service credit |  |  | — |  |  |  | — |  |  |  | (141 | ) |  |  | (154 | ) |  |  | — |  |  |  | — |
Recognized net actuarial loss |  |  | 302 |  |  |  | 370 |  |  |  | 84 |  |  |  | 304 |  |  |  | 111 |  |  |  | 120 |
Net periodic benefit cost |  | $ | 920 |  |  | $ | 858 |  |  | $ | 334 |  |  | $ | 547 |  |  | $ | 331 |  |  | $ | 429 |
We expect to contribute $1.0 million to our funded pension plans, $1.2 million to our unfunded pension plans, and $1.2 million to our postretirement benefit plans in 2019. During the nine months ended September 30, 2019, we contributed $1.0 million to our funded pension plans, $0.7 million to our unfunded pension plans, and $0.7 million to our postretirement benefit plans.

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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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