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Derivative Instruments - Balance Sheet Location (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Derivatives, Fair Value
Debt Instrument, Interest Rate, Effective Percentage					5.10%
Derivative, Net Hedge Ineffectiveness Gain (Loss)	$ 0	$ 200,000	$ 1,200,000	$ 200,000
Not Designated as Hedging Instrument
Derivatives, Fair Value
Derivative asset fair value	460,000		460,000		$ 615,000
Derivative liability fair value	190,000		190,000		81,000
Commodity derivative contracts \| Not Designated as Hedging Instrument \| Prepaid and other current assets
Derivatives, Fair Value
Derivative asset fair value	294,000		294,000		376,000
Commodity derivative contracts \| Not Designated as Hedging Instrument \| Other current liabilities
Derivatives, Fair Value
Derivative liability fair value	0		0		0
Interest rate swap contract
Derivatives, Fair Value
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent			17,000,000.0
Foreign currency derivatives \| Not Designated as Hedging Instrument \| Prepaid and other current assets
Derivatives, Fair Value
Derivative asset fair value	166,000		166,000		239,000
Foreign currency derivatives \| Not Designated as Hedging Instrument \| Other current liabilities
Derivatives, Fair Value
Derivative liability fair value	190,000		190,000		81,000
Cash Flow Hedging \| Commodity derivative contracts \| Designated as Hedging Instrument
Derivatives, Fair Value
Derivative asset fair value	0		0		3,410,000
Derivative liability fair value	28,174,000		28,174,000		4,199,000
Cash Flow Hedging \| Commodity derivative contracts \| Designated as Hedging Instrument \| Prepaid and other current assets
Derivatives, Fair Value
Derivative asset fair value	0		0		104,000
Cash Flow Hedging \| Commodity derivative contracts \| Designated as Hedging Instrument \| Other accrued liabilities
Derivatives, Fair Value
Derivative liability fair value	6,733,000		6,733,000		1,872,000
Cash Flow Hedging \| Commodity derivative contracts \| Designated as Hedging Instrument \| Other long-term assets
Derivatives, Fair Value
Derivative asset fair value	0		0		369,000
Cash Flow Hedging \| Commodity derivative contracts \| Designated as Hedging Instrument \| Other long-term obligations
Derivatives, Fair Value
Derivative liability fair value	7,312,000		7,312,000		2,255,000
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		253,000
Cash Flow Hedging \| Interest rate swap contract \| Designated as Hedging Instrument \| Other accrued liabilities
Derivatives, Fair Value
Derivative liability fair value	5,914,000		5,914,000		0
Cash Flow Hedging \| Interest rate swap contract \| Designated as Hedging Instrument \| Other long-term assets
Derivatives, Fair Value
Derivative asset fair value	0		0		2,684,000
Cash Flow Hedging \| Interest rate swap contract \| Designated as Hedging Instrument \| Other long-term obligations
Derivatives, Fair Value
Derivative liability fair value	$ 8,215,000		$ 8,215,000		$ 72,000
Scenario, Plan [Member]
Derivatives, Fair Value
Debt Instrument, Interest Rate, Effective Percentage					4.85%