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Fair Value Measurements
12 Months Ended
Dec. 31, 2023
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements:
The table below presents the balances of assets and liabilities measured at fair value as of December 31, 2023 and December 31, 2022 on a recurring basis, as well as the fair values of other financial instruments, including their locations within the consolidated balance sheets:
(In thousands)December 31, 2023December 31, 2022
Balance Sheet LocationFair Value Hierarchy LevelCarrying ValueFair ValueCarrying ValueFair Value
Financial assets (liabilities) measured on a recurring basis:
Short-term investmentsOther current assetsLevel 1$319 $319 $432 $432 
Other financial assets (liabilities):
2025 senior notes
Long-Term Debt (1)
Level 2$(1,000,000)$(996,250)$(1,000,000)$(985,000)
2027 senior notes
Long-Term Debt (1)
Level 1$(500,000)$(490,000)$(500,000)$(476,250)
2028 senior notes
Long-Term Debt (1)
Level 1$(300,000)$(298,125)$(300,000)$(291,000)
2029 senior notes
Long-Term Debt (1)
Level 1$(500,000)$(472,500)$(500,000)$(446,250)
(1)Carrying values of long-term debt balances are before reductions for debt issuance costs and original issue discount of $24.5 million and $31.8 million as of December 31, 2023 and December 31, 2022, respectively.

The carrying value of cash and cash equivalents, accounts receivable, accounts payable, and accrued liabilities approximates fair value because of the short maturity of these instruments. There were no assets or liabilities measured at fair value on a non-recurring basis as of December 31, 2023 or December 31, 2022. The "Loss on impairment / retirement of fixed assets" within the consolidated statements of operations and comprehensive income (loss) included the write-off of the net book value of certain property and equipment based on Level 3 inputs.