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Debt - Debt Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Finance lease obligations	$ 60,282	$ 37,943
Total debt	1,610,662	1,700,224
Less current portion and short-term notes	411,557	455,784
Long-term Debt	$ 1,199,106	$ 1,244,440
Commercial paper, average rate of 0.75% in 2021 and 0.75% in 2020
Debt Instrument [Line Items]
Weighted average interest rate (percent)	0.16%	0.75%
Long-term debt	$ 349,000	$ 0
1.0% Euro loan due May 2021
Debt Instrument [Line Items]
Stated interest rate (percent)	1.00%
Long-term debt	$ 0	183,662
9.2% debentures due August 2021
Debt Instrument [Line Items]
Stated interest rate (percent)	9.20%
Long-term debt	$ 0	4,320
4.375% debentures due November 2021
Debt Instrument [Line Items]
Stated interest rate (percent)	4.375%
Long-term debt	$ 0	249,741
3.125% debentures due May 2030
Debt Instrument [Line Items]
Stated interest rate (percent)	3.125%
Long-term debt	$ 595,342	594,687
5.75% debentures due November 2040
Debt Instrument [Line Items]
Stated interest rate (percent)	5.75%
Long-term debt	$ 536,182	$ 599,279
Other foreign denominated debt, average rate of 3.0% in 2021 and 2.2% in 2020
Debt Instrument [Line Items]
Weighted average interest rate (percent)	3.00%	2.20%
Long-term debt	$ 55,432	$ 15,522
Other notes
Debt Instrument [Line Items]
Long-term debt	$ 14,424	$ 15,070

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Contractual interest rate for funds borrowed, under the debt agreement.

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