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Debt
 12 Months Ended
Dec. 31, 2021
Debt Disclosure [Abstract]  
Debt Debt
December 31,
Interest rate20212020
Notes due October 20214.875%— 152,588 
Notes due May 20225.625%— 148,792 
Notes due April 20236.20%90,259 271,000 
Notes due March 20244.625%242,603 374,000 
Notes due March 20276.875%400,000 — 
Notes due March 20297.25%350,000 — 
Notes due January 20375.25%35,841 35,841 
Notes due March 20436.70%425,000 425,000 
Term loan due March 2026
LIBOR + 1.75%
370,500 380,000 
Term loan due January 2025
LIBOR + 5.5%
— 818,125 
Term loan due March 2028
LIBOR + 4.0%
446,625 — 
Other debt3,685 4,900 
Principal amount2,364,513 2,610,246 
Less: unamortized costs, net40,675 45,853 
Total debt2,323,838 2,564,393 
Less: current portion long-term debt24,739 216,032 
Long-term debt$2,299,099 $2,348,361 

In 2021, we issued a $400 million 6.875% unsecured note due March 2027, a $350 million 7.25% unsecured note due March 2029 and entered into a seven-year $450 million secured term loan maturing March 2028. We redeemed all the outstanding October 2021 notes and an aggregate $363 million of the May 2022 notes, April 2023 notes and March 2024 notes under a tender offer, the remaining balance of the May 2022 notes and the remaining balance of the January 2025 term loan. We also extended the maturities of our $500 million secured revolving credit facility and our $380 million secured term loan from November 2024 to March 2026. A $56 million pre-tax loss was incurred on the refinancing of debt.
The credit agreement that governs the revolving credit facility and term loans contains financial and non-financial covenants. At December 31, 2021, we were in compliance with all covenants and there were no outstanding borrowings under the revolving credit facility.
We also terminated interest rate swap agreements with an aggregate notional value of $500 million and entered into new interest rate swap agreements with an aggregate notional amount of $200 million. Under the terms of the new swap agreements, we pay fixed-rate interest of 0.56% and receive variable-rate interest based on one-month LIBOR. The variable interest rate under the term loans and the swaps reset monthly. We received $2 million from the termination of the $500 million interest rate swap agreements, which was recorded in AOCL and will be recognized ratably in income through 2024.
At December 31, 2021, the interest rate of the 2028 Term Loan was 4.1% and the interest rate on the 2026 Term Loan was 1.9%.

Annual maturities of outstanding principal at December 31, 2021 are as follows:
2022$24,739 
2023119,748 
2024281,560 
202542,500 
2026261,000 
Thereafter1,634,966 
Total$2,364,513