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Employee benefits - Projected benefit payments (Details) $ in Thousands | Dec. 31, 2022 USD ($)
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Pension Plans |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
2023 | $ 48,472
2024 | 45,590
2025 | 45,750
2026 | 45,847
2027 | 45,843
2028- 2032 | 225,107
OPEB Plan |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
2023 | 5,924
2024 | 6,149
2025 | 6,429
2026 | 6,754
2027 | 7,053
2028- 2032 | $ 38,873

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- Definition Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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