Finance Assets and Lessor Operating Leases (Aging of Receivables) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Past Due [Line Items]
Total	$ 1,468,638	$ 1,606,227
Still accruing interest	11,469	8,131
Not accruing interest	23,471	22,667
Total	34,940	30,798
1 - 90 days
Financing Receivable, Past Due [Line Items]
Past due	1,433,698	1,575,429
Greater than 90 days
Financing Receivable, Past Due [Line Items]
Past due	34,940	30,798
Sales-type lease receivables | North America
Financing Receivable, Past Due [Line Items]
Total	998,450	1,055,852
Still accruing interest	4,982	4,835
Not accruing interest	18,604	18,105
Total	23,586	22,940
Sales-type lease receivables | North America | 1 - 90 days
Financing Receivable, Past Due [Line Items]
Past due	974,864	1,032,912
Sales-type lease receivables | North America | Greater than 90 days
Financing Receivable, Past Due [Line Items]
Past due	23,586	22,940
Sales-type lease receivables | International
Financing Receivable, Past Due [Line Items]
Total	196,767	224,202
Still accruing interest	1,091	1,081
Not accruing interest	1,621	2,302
Total	2,712	3,383
Sales-type lease receivables | International | 1 - 90 days
Financing Receivable, Past Due [Line Items]
Past due	194,055	220,819
Sales-type lease receivables | International | Greater than 90 days
Financing Receivable, Past Due [Line Items]
Past due	2,712	3,383
Loan receivables
Financing Receivable, Past Due [Line Items]
Total	273,421
Loan receivables | North America
Financing Receivable, Past Due [Line Items]
Total	254,786	298,247
Still accruing interest	5,205	2,094
Not accruing interest	3,090	2,152
Total	8,295	4,246
Loan receivables | North America | 1 - 90 days
Financing Receivable, Past Due [Line Items]
Past due	246,491	294,001
Loan receivables | North America | Greater than 90 days
Financing Receivable, Past Due [Line Items]
Past due	8,295	4,246
Loan receivables | International
Financing Receivable, Past Due [Line Items]
Total	18,635	27,926
Still accruing interest	191	121
Not accruing interest	156	108
Total	347	229
Loan receivables | International | 1 - 90 days
Financing Receivable, Past Due [Line Items]
Past due	18,288	27,697
Loan receivables | International | Greater than 90 days
Financing Receivable, Past Due [Line Items]
Past due	$ 347	$ 229