Finance Assets and Lessor Operating Leases (Aging of Receivables) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Total	$ 1,429,332	$ 1,497,711
Still accruing interest	2,918	7,447
Not accruing interest	8,391	22,614
Total	11,309	30,061
1 - 90 days
Financing Receivable, Past Due [Line Items]
Total	1,418,023	1,467,650
Greater than 90 days
Financing Receivable, Past Due [Line Items]
Total	11,309	30,061
Sales-type lease receivables | North America
Financing Receivable, Past Due [Line Items]
Total	960,290	994,985
Still accruing interest	2,046	5,128
Not accruing interest	2,513	17,591
Total	4,559	22,719
Sales-type lease receivables | North America | 1 - 90 days
Financing Receivable, Past Due [Line Items]
Total	955,731	972,266
Sales-type lease receivables | North America | Greater than 90 days
Financing Receivable, Past Due [Line Items]
Total	4,559	22,719
Sales-type lease receivables | International
Financing Receivable, Past Due [Line Items]
Total	186,979	211,944
Still accruing interest	872	463
Not accruing interest	1,491	2,513
Total	2,363	2,976
Sales-type lease receivables | International | 1 - 90 days
Financing Receivable, Past Due [Line Items]
Total	184,616	208,968
Sales-type lease receivables | International | Greater than 90 days
Financing Receivable, Past Due [Line Items]
Total	2,363	2,976
Loan receivables
Financing Receivable, Past Due [Line Items]
Total	282,063	290,782
Loan receivables | North America
Financing Receivable, Past Due [Line Items]
Total	259,653	268,690
Still accruing interest	0	1,797
Not accruing interest	4,288	2,409
Total	4,288	4,206
Loan receivables | North America | 1 - 90 days
Financing Receivable, Past Due [Line Items]
Total	255,365	264,484
Loan receivables | North America | Greater than 90 days
Financing Receivable, Past Due [Line Items]
Total	4,288	4,206
Loan receivables | International
Financing Receivable, Past Due [Line Items]
Total	22,410	22,092
Still accruing interest	0	59
Not accruing interest	99	101
Total	99	160
Loan receivables | International | 1 - 90 days
Financing Receivable, Past Due [Line Items]
Total	22,311	21,932
Loan receivables | International | Greater than 90 days
Financing Receivable, Past Due [Line Items]
Total	$ 99	$ 160