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Fair Value Measurements
12 Months Ended
Dec. 31, 2020
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
The carrying amount of cash and cash equivalents in the Consolidated Balance Sheets, as well as the fair value, was $125 million at December 31, 2020 and $144 million at December 31, 2019. The fair value is categorized in Level 1 of the fair value hierarchy.
No material events occurred during 2020 requiring adjustment to the recognized balances of assets or liabilities which are recorded at fair value on a nonrecurring basis.
Long-term debt - We record the carrying amount of our long-term debt at historical cost, less deferred financing costs related to the 4.10% senior notes. The estimated fair value of our long-term debt is shown in the table below and is based primarily on estimated current rates available to us for debt of the same remaining duration and adjusted for nonperformance risk and credit risk. The estimated fair value of our publicly traded 4.10% senior notes included in long-term debt in the table below is based on the last quoted price closest to December 31, 2020. The fair value of our debt instruments is categorized as Level 2.
 December 31, 2020December 31, 2019
(in thousands)Carrying
Amount
Fair
Value
Carrying
Amount
Fair
Value
Long-term debt $598,848 $648,671 $642,941 $677,253