Finance Assets and Lessor Operating Leases (Aging of Receivables) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Financing Receivable, Past Due [Line Items]
Total	$ 1,549,089	$ 1,606,227
Still accruing interest	8,828	8,131
Not accruing interest	20,959	22,667
Total	29,787	30,798
1 - 90 days
Financing Receivable, Past Due [Line Items]
Past due	1,519,302	1,575,429
Greater than 90 days
Financing Receivable, Past Due [Line Items]
Past due	29,787	30,798
Sales-type lease receivables | North America
Financing Receivable, Past Due [Line Items]
Total	1,031,493	1,055,852
Still accruing interest	4,856	4,835
Not accruing interest	17,758	18,105
Total	22,614	22,940
Sales-type lease receivables | North America | 1 - 90 days
Financing Receivable, Past Due [Line Items]
Past due	1,008,879	1,032,912
Sales-type lease receivables | North America | Greater than 90 days
Financing Receivable, Past Due [Line Items]
Past due	22,614	22,940
Sales-type lease receivables | International
Financing Receivable, Past Due [Line Items]
Total	200,053	224,202
Still accruing interest	1,309	1,081
Not accruing interest	1,063	2,302
Total	2,372	3,383
Sales-type lease receivables | International | 1 - 90 days
Financing Receivable, Past Due [Line Items]
Past due	197,681	220,819
Sales-type lease receivables | International | Greater than 90 days
Financing Receivable, Past Due [Line Items]
Past due	2,372	3,383
Loan receivables
Financing Receivable, Past Due [Line Items]
Total	317,543
Loan receivables | North America
Financing Receivable, Past Due [Line Items]
Total	292,699	298,247
Still accruing interest	2,538	2,094
Not accruing interest	1,981	2,152
Total	4,519	4,246
Loan receivables | North America | 1 - 90 days
Financing Receivable, Past Due [Line Items]
Past due	288,180	294,001
Loan receivables | North America | Greater than 90 days
Financing Receivable, Past Due [Line Items]
Past due	4,519	4,246
Loan receivables | International
Financing Receivable, Past Due [Line Items]
Total	24,844	27,926
Still accruing interest	125	121
Not accruing interest	157	108
Total	282	229
Loan receivables | International | 1 - 90 days
Financing Receivable, Past Due [Line Items]
Past due	24,562	27,697
Loan receivables | International | Greater than 90 days
Financing Receivable, Past Due [Line Items]
Past due	$ 282	$ 229