Finance Assets and Lessor Operating Leases (Finance Receivables) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses	$ (29,907)	$ (35,869)	$ (38,068)	$ (19,651)
Net investment in receivables	1,139,337	1,173,342
North America
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net investment in receivables	980,625	995,320
International
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net investment in receivables	158,712	178,022
Sales-type lease receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross finance receivables	1,147,269	1,206,929
Unguaranteed residual values	48,928	48,545
Unearned income	(309,016)	(337,045)
Allowance for credit losses	(26,298)	(28,923)
Net investment in receivables	860,883	889,506
Sales-type lease receivables | North America
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross finance receivables	960,290	994,985
Unguaranteed residual values	37,827	36,405
Unearned income	(251,451)	(275,359)
Allowance for credit losses	(22,321)	(22,917)	(25,886)	(10,920)
Net investment in receivables	724,345	733,114
Sales-type lease receivables | International
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross finance receivables	186,979	211,944
Unguaranteed residual values	11,101	12,140
Unearned income	(57,565)	(61,686)
Allowance for credit losses	(3,977)	(6,006)	(4,902)	(2,085)
Net investment in receivables	136,538	156,392
Loan receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross finance receivables	282,063	290,782
Allowance for credit losses	(3,609)	(6,946)
Net investment in receivables	278,454	283,836
Loan receivables | North America
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross finance receivables	259,653	268,690
Allowance for credit losses	(3,373)	(6,484)	(6,792)	(5,906)
Net investment in receivables	256,280	262,206
Loan receivables | International
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross finance receivables	22,410	22,092
Allowance for credit losses	(236)	(462)	$ (488)	$ (740)
Net investment in receivables	$ 22,174	$ 21,630
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Lease period	3 years
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Lease period	5 years