Finance Assets and Lessor Operating Leases (Aging of Receivables) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Past Due [Line Items]
Total	$ 1,606,227	$ 1,682,523
1 - 90 days
Financing Receivable, Past Due [Line Items]
Aging of receivables	1,575,429	1,630,609
Greater Than 90 days
Financing Receivable, Past Due [Line Items]
Aging of receivables	30,798	51,914
Still accruing interest	8,131	10,869
Not accruing interest	22,667	41,045
North America | Sales-type lease receivables
Financing Receivable, Past Due [Line Items]
Total	1,055,852	1,110,898
North America | Sales-type lease receivables | 1 - 90 days
Financing Receivable, Past Due [Line Items]
Aging of receivables	1,032,912	1,069,290
North America | Sales-type lease receivables | Greater Than 90 days
Financing Receivable, Past Due [Line Items]
Aging of receivables	22,940	41,608
Still accruing interest	4,835	7,917
Not accruing interest	18,105	33,691
North America | Loan receivables
Financing Receivable, Past Due [Line Items]
Total	298,247	300,319
North America | Loan receivables | 1 - 90 days
Financing Receivable, Past Due [Line Items]
Aging of receivables	294,001	294,126
North America | Loan receivables | Greater Than 90 days
Financing Receivable, Past Due [Line Items]
Aging of receivables	4,246	6,193
Still accruing interest	2,094	1,769
Not accruing interest	2,152	4,424
International | Sales-type lease receivables
Financing Receivable, Past Due [Line Items]
Total	224,202	242,036
International | Sales-type lease receivables | 1 - 90 days
Financing Receivable, Past Due [Line Items]
Aging of receivables	220,819	238,114
International | Sales-type lease receivables | Greater Than 90 days
Financing Receivable, Past Due [Line Items]
Aging of receivables	3,383	3,922
Still accruing interest	1,081	1,111
Not accruing interest	2,302	2,811
International | Loan receivables
Financing Receivable, Past Due [Line Items]
Total	27,926	29,270
International | Loan receivables | 1 - 90 days
Financing Receivable, Past Due [Line Items]
Aging of receivables	27,697	29,079
International | Loan receivables | Greater Than 90 days
Financing Receivable, Past Due [Line Items]
Aging of receivables	229	191
Still accruing interest	121	72
Not accruing interest	$ 108	$ 119