Financial Instruments - Income Statement Location (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss)	$ (649)	$ 3,412	$ 1,924	$ 6,241
Commodity contracts | Other income (expense), net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss)	(329)	(379)	(736)	(436)
Economic interests in loans | Financial services revenue
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss)	$ (320)	$ 3,791	$ 2,660	$ 6,677