Finance Assets and Lessor Operating Leases (Credit Quality) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 1,497,711	$ 1,606,227
Low
Financing Receivable, Credit Quality Indicator [Line Items]
Approximate percentage of portfolio	30.00%
Total	$ 973,245
Medium
Financing Receivable, Credit Quality Indicator [Line Items]
Approximate percentage of portfolio	40.00%
Total	$ 229,757
High
Financing Receivable, Credit Quality Indicator [Line Items]
Approximate percentage of portfolio	30.00%
Total	$ 23,046
Not Scored
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 271,663
International
Financing Receivable, Credit Quality Indicator [Line Items]
Percent of applications approved or denied	80.00%
Sales-type lease receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2020	$ 394,394
2019	361,048
2018	254,898
2017	134,999
2016	45,852
Prior	15,738
Sales-type lease receivables | Low
Financing Receivable, Credit Quality Indicator [Line Items]
2020	256,573
2019	228,344
2018	165,244
2017	87,346
2016	30,518
Prior	12,249
Sales-type lease receivables | Medium
Financing Receivable, Credit Quality Indicator [Line Items]
2020	50,785
2019	49,946
2018	37,168
2017	21,388
2016	6,470
Prior	2,375
Sales-type lease receivables | High
Financing Receivable, Credit Quality Indicator [Line Items]
2020	6,182
2019	5,396
2018	3,782
2017	1,974
2016	1,051
Prior	143
Sales-type lease receivables | Not Scored
Financing Receivable, Credit Quality Indicator [Line Items]
2020	80,854
2019	77,362
2018	48,704
2017	24,291
2016	7,813
Prior	971
Sales-type lease receivables | International
Financing Receivable, Credit Quality Indicator [Line Items]
Total	211,944	224,202
Loan receivables
Financing Receivable, Credit Quality Indicator [Line Items]
Total	290,782
Loan receivables | Low
Financing Receivable, Credit Quality Indicator [Line Items]
Total	192,971
Loan receivables | Medium
Financing Receivable, Credit Quality Indicator [Line Items]
Total	61,625
Loan receivables | High
Financing Receivable, Credit Quality Indicator [Line Items]
Total	4,518
Loan receivables | Not Scored
Financing Receivable, Credit Quality Indicator [Line Items]
Total	31,668
Loan receivables | International
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 22,092	$ 27,926