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Derivative Instruments - Balance Sheet Location (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Not Designated as Hedging Instrument
Derivatives, Fair Value
Derivative asset fair value	$ 146	$ 6
Derivative liability fair value	429	1,063
Commodity derivative contracts | Not Designated as Hedging Instrument | Prepaid and other current assets
Derivatives, Fair Value
Derivative asset fair value		0
Commodity derivative contracts | Not Designated as Hedging Instrument | Other accrued liabilities
Derivatives, Fair Value
Derivative liability fair value		952
Foreign currency derivatives | Not Designated as Hedging Instrument | Prepaid and other current assets
Derivatives, Fair Value
Derivative asset fair value	146	6
Foreign currency derivatives | Not Designated as Hedging Instrument | Other accrued liabilities
Derivatives, Fair Value
Derivative liability fair value	429	111
Cash Flow Hedging | Commodity derivative contracts | Designated as Hedging Instrument
Derivatives, Fair Value
Derivative asset fair value	9,454	581
Derivative liability fair value	848	13,769
Cash Flow Hedging | Commodity derivative contracts | Designated as Hedging Instrument | Prepaid and other current assets
Derivatives, Fair Value
Derivative asset fair value	5,592	518
Cash Flow Hedging | Commodity derivative contracts | Designated as Hedging Instrument | Other accrued liabilities
Derivatives, Fair Value
Derivative liability fair value	0	888
Cash Flow Hedging | Commodity derivative contracts | Designated as Hedging Instrument | Other long-term assets
Derivatives, Fair Value
Derivative asset fair value	571	63
Cash Flow Hedging | Commodity derivative contracts | Designated as Hedging Instrument | Other long-term obligations
Derivatives, Fair Value
Derivative liability fair value	0	1,898
Cash Flow Hedging | Interest rate swap contract | Designated as Hedging Instrument | Prepaid and other current assets
Derivatives, Fair Value
Derivative asset fair value	0	0
Cash Flow Hedging | Interest rate swap contract | Designated as Hedging Instrument | Other accrued liabilities
Derivatives, Fair Value
Derivative liability fair value	848	4,080
Cash Flow Hedging | Interest rate swap contract | Designated as Hedging Instrument | Other long-term assets
Derivatives, Fair Value
Derivative asset fair value	3,291	0
Cash Flow Hedging | Interest rate swap contract | Designated as Hedging Instrument | Other long-term obligations
Derivatives, Fair Value
Derivative liability fair value	$ 0	$ 6,903

X

- Definition

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section 55
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- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 860
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