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Debt
 9 Months Ended
Sep. 30, 2022
Debt Disclosure [Abstract]  
Debt Debt
Debt consists of the following:
September 30, 2022December 31, 2021
(in thousands)
$450 million senior unsecured notes due 2031 ("2020 Senior Notes") with an effective interest rate of 3.86%, less a discount and deferred issuance costs of $5.1 million and $5.5 million at September 30, 2022 and December 31, 2021, respectively
$444,927 $444,470 
$400 million senior unsecured notes due 2029 ("2019 Senior Notes") with an effective interest rate of 3.88%, less a discount and deferred issuance costs of $4.3 million and $4.8 million at September 30, 2022 and December 31, 2021, respectively
395,688 395,237 
$216.6 million senior unsecured notes due 2022 ("2012 Senior Notes") with an effective interest rate of 6.00%, less deferred issuance costs of $0.2 million at December 31, 2021 (1)
— 216,351 
$600 million senior unsecured revolving credit facility with an effective interest rate of 3.89% less deferred issuance costs of $1.9 million and $2.3 million at September 30, 2022 and December 31, 2021, respectively
313,087 — 
Economic development loans with an effective interest rate of 3.00% at September 30, 2022 and December 31, 2021, respectively
4,416 4,416 
Total debt (2)
$1,158,118 $1,060,474 
Less current portion (1)
2,976 216,351 
Long-term debt$1,155,142 $844,123 
(1) The 2012 Senior Notes matured on July 1, 2022. The outstanding principal of $216.6 million was re-paid at maturity.
(2) As part of the Transaction, we assumed debt that was subsequently paid off. For additional details refer to Note 15.
Refer to Note 12 and the Liquidity and Capital Resources header of "Management's Discussion and Analysis of Financial Condition and Results of Operations" for more information.