XML 31 R19.htm IDEA: XBRL DOCUMENT
v3.21.2

Employee Benefit Plans: | 9 Months Ended
--- | ---
Sep. 30, 2021
Retirement Benefits [Abstract] |
Employee Benefit Plans | Employee Benefit Plans Defined Benefit Pension Plan The components of net periodic benefit cost for the Defined Benefit Pension Plan were as follows (in thousands):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2021 | 2020 |  | 2021 | 2020
Service cost | $ | 1,260 |  | $ | 1,352 |  |  | $ | 3,779 |  | $ | 4,058 |
Interest cost | 2,328 |  | 3,356 |  |  | 6,984 |  | 10,069 |
Expected return on plan assets | (5,219) |  | (5,647) |  |  | (15,657) |  | (16,943) |
Net loss | 1,828 |  | 2,093 |  |  | 5,486 |  | 6,279 |
Net periodic benefit cost | $ | 197 |  | $ | 1,154 |  |  | $ | 592 |  | $ | 3,463 |
Defined Benefit Postretirement Healthcare Plan The components of net periodic benefit cost for the Defined Benefit Postretirement Healthcare Plan were as follows (in thousands):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2021 | 2020 |  | 2021 | 2020
Service cost | $ | 560 |  | $ | 514 |  |  | $ | 1,678 |  | $ | 1,542 |
Interest cost | 264 |  | 412 |  |  | 793 |  | 1,237 |
Expected return on plan assets | (34) |  | (46) |  |  | (102) |  | (137) |
Prior service cost (benefit) | (108) |  | (136) |  |  | (326) |  | (410) |
Net loss | 116 |  | 5 |  |  | 350 |  | 15 |
Net periodic benefit cost | $ | 798 |  | $ | 749 |  |  | $ | 2,393 |  | $ | 2,247 |
Supplemental Non-qualified Defined Benefit and Defined Contribution Plans The components of net periodic benefit cost for the Supplemental Non-qualified Defined Benefit and Defined Contribution Plans were as follows (in thousands):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2021 | 2020 |  | 2021 | 2020
Service cost | $ | 235 |  | $ | 1,035 |  |  | $ | 1,948 |  | $ | 1,482 |
Interest cost | 176 |  | 274 |  |  | 530 |  | 824 |
Prior service cost | — |  | 1 |  |  | — |  | 1 |
Net loss | 439 |  | 425 |  |  | 1,316 |  | 1,277 |
Net periodic benefit cost | $ | 850 |  | $ | 1,735 |  |  | $ | 3,794 |  | $ | 3,584 |
Contributions Contributions to the Defined Benefit Pension Plan are cash contributions made directly to the Pension Plan Trust account. Contributions to the Postretirement Healthcare and Supplemental Plans are made in the form of benefit payments. Contributions made in the first nine months of 2021 and anticipated contributions for 2021 and 2022 are as follows (in thousands):
|  | Contributions Made | Additional Contributions | Contributions
|  | Nine Months Ended September 30, 2021 | Anticipated for 2021 | Anticipated for 2022
Defined Benefit Pension Plan |  | $ | — |  | $ | — |  | $ | 3,900 |
Non-pension Defined Benefit Postretirement Healthcare Plan |  | $ | 4,145 |  | $ | 1,382 |  | $ | 5,202 |
Supplemental Non-qualified Defined Benefit and Defined Contribution Plans |  | $ | 1,445 |  | $ | 482 |  | $ | 2,149 |

X
- References No definition available. + Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for retirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section S99 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=21916913&loc=d3e273930-122802 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (o) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (p) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39689-114964 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(03) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (q) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (r)(1) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iii) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (l) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (r)(2) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
Name: | us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration