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Fair Value Measurement (Tables)
6 Months Ended
Jun. 30, 2021
Fair Value Disclosures [Abstract]  
Summary of Changes in Fair Value by Balance Sheet Grouping The following table presents the input level used to determine the fair values of our financial instruments measured at fair value on a recurring basis:
Fair Value as of
LevelJune 30, 2021December 31, 2020
Assets:
Interest rate swap instruments2$743 $
Commodity swap instruments2— 363 
Total assets$743 $365 
Liabilities:
Interest rate swap instruments2$7,859 $10,073 
Commodity swap instruments21,135 — 
Make-whole provisions21,247 412 
Contingent consideration3678 678 
Total liabilities$10,919 $11,163 
Fair Value and Carrying Value of Long-Term Debt The following table sets forth the fair value and the carrying value of our long-term debt, excluding financing leases:
As of June 30, 2021As of December 31, 2020
Fair ValueCarrying ValueFair ValueCarrying Value
Long-term debt (Level 2) $367,427 $363,716 $363,460 $357,536