Note 11. Impairment Charges (Details) - USD ($)	3 Months Ended					12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020		Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Impaired Assets to be Disposed of by Method Other than Sale, Fair Value of Asset	$ 191,700,000						$ 191,700,000
Impaired Assets to be Disposed of by Method Other than Sale, Carrying Value of Asset	550,000,000						550,000,000
Impairment of Long-Lived Assets Held-for-use							358,300,000
Operating Lease, Impairment Loss							11,100,000
Impairment of long-lived assets	$ 27,000,000.0	$ 0	$ 369,400,000	[1]	$ 0	$ 0	396,400,000	$ 0
Building [Member]
Restructuring Cost and Reserve [Line Items]
Impairment of long-lived assets							15,200,000
Investments [Domain]
Restructuring Cost and Reserve [Line Items]
Impairment of long-lived assets							11,800,000
Railroad Transportation Equipment [Member]
Restructuring Cost and Reserve [Line Items]
Impairment of long-lived assets							$ 369,400,000
Net income (loss) attributable to noncontrolling interest [Member]
Restructuring Cost and Reserve [Line Items]
Impairment of long-lived assets			$ 81,300,000

[1] Impairment of long-lived assets during the three months ended June 30, 2020 relates to our small cube covered hopper railcars. See Note 11 for further information.