v3.20.4
DEBT (Tables)
12 Months Ended
Dec. 31, 2020
Debt Disclosure [Abstract]  
Schedule of Short-term Debt [Table Text Block]
Short-term debt consisted of the following:
 December 31,
20202019
 (Thousands of Dollars)
Short-term line of credit$— $5,500 
Current portion of finance leases (refer to Note 16)
$3,839 $4,546 
Schedule of Long-term Debt Instruments [Table Text Block]
Long-term debt consisted of the following:
 December 31,
 Maturity20202019
 (Thousands of Dollars)
Revolving Credit Agreement2023$— $475,000 
4.80% senior notes2020— 450,000 
6.75% senior notes2021300,000 300,000 
4.75% senior notes2022250,000 250,000 
5.75% senior notes2025600,000 — 
6.00% senior notes2026500,000 500,000 
5.625% senior notes2027550,000 550,000 
6.375% senior notes2030600,000 — 
Subordinated Notes2043402,500 402,500 
GoZone Bonds2038thru2041322,140 365,440 
Receivables Financing Agreement202357,000 62,200 
Net fair value adjustments, unamortized discounts and unamortized debt issuance costs
N/A(42,382)(23,301)
Total long-term debt (excluding finance leases)3,539,258 3,331,839 
Finance leases (refer to Note 16)
54,238 55,446 
Less current portion— 452,367 
Long-term debt, less current portion$3,593,496 $2,934,918 
Schedule of Maturities of Long-term Debt [Table Text Block]
The long-term debt repayments (excluding finance leases) are due as follows (in thousands of dollars):
2021$300,000 
2022250,000 
202357,000 
2024— 
2025600,000 
Thereafter2,374,640 
Total repayments3,581,640 
Net fair value adjustments, unamortized discounts and unamortized debt issuance costs(42,382)
Total long-term debt (excluding finance leases)$3,539,258 
Schedule of GoZone Bonds [Table Text Block]
The following table summarizes the GoZone Bonds outstanding as of December 31, 2020:
SeriesDate IssuedAmount
Outstanding

Interest Rate
Mandatory
Purchase Date
Maturity Date
 (Thousands of Dollars) 
Series 2008June 26, 2008$55,440 6.10 %June 1, 2030June 1, 2038
Series 2010July 15, 2010100,000 6.35 %n/aJuly 1, 2040
Series 2010AOctober 7, 201043,300 6.35 %n/aOctober 1, 2040
Series 2010BDecember 29, 201048,400 6.10 %June 1, 2030December 1, 2040
Series 2011August 9, 201175,000 5.85 %June 1, 2025August 1, 2041
Total$322,140