| Fair value of debt instruments |
The carrying and fair values of these liabilities were as follows: | | | | | | | | | | | | | | | September 30, 2026 | | December 31, 2025 | | | Carrying | | Fair | | Carrying | | Fair | | | Value | | Value | | Value | | Value | | | (In thousands) | 7.50% senior guaranteed notes due January 2028 | | $ | — | | $ | — | | $ | 379,146 | | $ | 379,491 | 1.75% senior exchangeable notes due June 2029 | | | 250,000 | | | 230,313 | | | 250,000 | | | 202,868 | 9.125% senior priority guaranteed notes due January 2030 | | | 550,000 | | | 570,906 | | | 650,000 | | | 683,293 | 8.875% senior guaranteed notes due August 2031 | | | 550,000 | | | 556,584 | | | 550,000 | | | 533,638 | 7.625% senior priority guaranteed notes due November 2032 | | | 700,000 | | | 700,196 | | | 700,000 | | | 687,890 | | | $ | 2,050,000 | | $ | 2,057,999 | | $ | 2,529,146 | | $ | 2,487,180 | Less: current portion | | | — | | | | | | 377,492 | | | | Less: deferred financing costs | | | 27,242 | | | | | | 34,467 | | | | | | $ | 2,022,758 | | | | | $ | 2,117,187 | | | |
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