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LEASES (Tables) | 12 Months Ended
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Dec. 31, 2022
Leases [Abstract] |
LeaseAssetsAndLiabilitiesInBalanceSheet [Table Text Block] | The following table sets forth information about our lease assets and liabilities included in our Consolidated Balance Sheet as of the dates indicated:
Leases | Location in our Consolidated Balance Sheet |  | December 31, 2022 |  | December 31, 2021
|  |  | (Thousands of dollars)
Assets |  |  |  |  |
Operating leases | Other assets |  | $ | 82,838 |  |  | $ | 89,558 |
Finance lease | Property, plant and equipment |  | 31,264 |  |  | 29,962 |
Finance lease | Accumulated depreciation |  | (4,769) |  |  | (3,590) |
Total leased assets |  |  | $ | 109,333 |  |  | $ | 115,930 |
Liabilities |  |  |  |  |
Current |  |  |  |  |
Operating leases | Operating lease liability |  | $ | 12,289 |  |  | $ | 13,783 |
Finance lease | Other current liabilities |  | 2,954 |  |  | 2,584 |
Noncurrent |  |  |  |  |
Operating leases | Operating lease liability |  | 68,110 |  |  | 75,636 |
Finance lease | Other deferred credits |  | 19,299 |  |  | 21,082 |
Total lease liabilities |  |  | $ | 102,652 |  |  | $ | 113,085 |
Lessee, Operating Lease, Disclosure [Table Text Block] | The following table sets forth information about our leases for the periods indicated:
| December 31, 2022 |  | December 31, 2021
Weighted average remaining lease term (years) |  |  |
Operating leases | 7.5 |  | 7.8
Finance lease | 5.5 |  | 6.6
Weighted average discount rate (a) |  |  |
Operating leases | 3.54% |  | 3.40%
Finance lease | 9.43% |  | 9.60%
(a) - Our weighted-average discount rates represent the rate implicit in the lease or our incremental borrowing rate for a term equal to the remaining term of the lease.
Lessee, Finance Lease, Disclosure [Table Text Block] | The following table sets forth information about our leases for the periods indicated:
| December 31, 2022 |  | December 31, 2021
Weighted average remaining lease term (years) |  |  |
Operating leases | 7.5 |  | 7.8
Finance lease | 5.5 |  | 6.6
Weighted average discount rate (a) |  |  |
Operating leases | 3.54% |  | 3.40%
Finance lease | 9.43% |  | 9.60%
(a) - Our weighted-average discount rates represent the rate implicit in the lease or our incremental borrowing rate for a term equal to the remaining term of the lease.
Finance Lease, Liability, Maturity [Table Text Block] | The following table sets forth the maturity of our lease liabilities as of December 31, 2022:
|  | Finance Lease |  | Operating Leases
|  | (Millions of dollars)
2023 |  | $ | 4.9 |  |  | $ | 14.6 |
2024 |  | 4.9 |  |  | 13.2 |
2025 |  | 5.6 |  |  | 11.8 |
2026 |  | 5.3 |  |  | 12.0 |
2027 |  | 4.5 |  |  | 11.5 |
2028 and beyond |  | 3.7 |  |  | 29.4 |
Total lease payments |  | 28.9 |  |  | 92.5 |
Less: Interest |  | 6.6 |  |  | 12.1 |
Present value of lease liabilities |  | $ | 22.3 |  |  | $ | 80.4 |
Lessee, Operating Lease, Liability, Maturity [Table Text Block] | The following table sets forth the maturity of our lease liabilities as of December 31, 2022:
|  | Finance Lease |  | Operating Leases
|  | (Millions of dollars)
2023 |  | $ | 4.9 |  |  | $ | 14.6 |
2024 |  | 4.9 |  |  | 13.2 |
2025 |  | 5.6 |  |  | 11.8 |
2026 |  | 5.3 |  |  | 12.0 |
2027 |  | 4.5 |  |  | 11.5 |
2028 and beyond |  | 3.7 |  |  | 29.4 |
Total lease payments |  | 28.9 |  |  | 92.5 |
Less: Interest |  | 6.6 |  |  | 12.1 |
Present value of lease liabilities |  | $ | 22.3 |  |  | $ | 80.4 |

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- Definition Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980 + Details
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- Definition Tabular disclosure for lessee's operating leases. Includes, but is not limited to, description of lessee's operating lease, existence and terms of renewal or purchase options and escalation clauses, restrictions imposed by lease, such as those concerning dividends, additional debt, and further leasing, rent holidays, rent concessions, or leasehold improvement incentives and unusual provisions or conditions. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=123406913&loc=d3e41499-112717 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=124440162&loc=d3e12069-110248 Reference 3: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=123406913&loc=d3e41502-112717 Reference 4: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=123389372&loc=d3e36991-112694 Reference 5: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI https://asc.fasb.org/extlink&oid=123403562&loc=d3e38371-112697 + Details
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