Commitments and Contingencies - Loss Contingencies (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Apr. 30, 2013	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Loss Contingencies [Line Items]
Long-term indemnification assets		$ 55,940	$ 69,040
UAM Brazil
Loss Contingencies [Line Items]
Noncontrolling interest, noncontrolling owners, ownership percent	49.00%
Brazil
Loss Contingencies [Line Items]
Estimate of possible contingency loss		49,000
Discontinued Operations, Held-for-sale
Loss Contingencies [Line Items]
Long-term indemnification assets		40,877	46,284
Discontinued Operations, Held-for-sale | Brazil
Loss Contingencies [Line Items]
Sales-type and direct financing leases, lease receivable		14,000	19
Pending Litigation
Loss Contingencies [Line Items]
Contingent liabilities recorded		8,300	5,800
Pending Litigation | Discontinued Operations, Held-for-sale
Loss Contingencies [Line Items]
Contingent liabilities recorded		$ 23,800	26,300
Taxes, Other-Than-Income Tax
Loss Contingencies [Line Items]
Loss contingency, statues of limitations		10 years
Taxes, Other-Than-Income Tax And Indemnification Assets
Loss Contingencies [Line Items]
Increases/(decreases) to operating income for adjustments to non-income tax contingencies and indemnification assets		$ 5,619	6,381	$ 4,166
Income Tax Contingencies
Loss Contingencies [Line Items]
Contingent liabilities recorded		40,668	51,442
Income Tax Contingencies | Discontinued Operations, Held-for-sale
Loss Contingencies [Line Items]
Contingent liabilities recorded		11,752	21,429
Guarantee Obligations
Loss Contingencies [Line Items]
Percent of shares of company acquired in a business combination, used as a guarantee	49.00%
Other Noncurrent Liabilities | Taxes, Other-Than-Income Tax
Loss Contingencies [Line Items]
Loss contingency, noncurrent		38,355	44,595
Other Noncurrent Liabilities | Taxes, Other-Than-Income Tax | Discontinued Operations, Held-for-sale
Loss Contingencies [Line Items]
Loss contingency, noncurrent		$ 37,794	$ 41,560