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Debt (Tables)
9 Months Ended
Sep. 30, 2023
Debt Disclosure [Abstract]  
Long-term debt
The aggregate carrying values of our long-term debt obligations and their par values, if different, as of September 30, 2023 and December 31, 2022 are presented in table 3.1 below.
Long-term debt obligations
Table
3.1
(In thousands)September 30, 2023December 31, 2022
5.25% Notes, due August 2028 (par value: $650 million)
$642,828 $641,724 
9% Debentures, due April 2063
 21,086 
Long-term debt, carrying value$642,828 $662,810