Finance Assets and Lessor Operating Leases (Credit Quality) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 1,450,652	$ 1,497,711
Low
Financing Receivable, Credit Quality Indicator [Line Items]
Approximate percentage of portfolio	5.00%
Total	$ 953,905	973,245
Medium
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 217,420	229,757
Medium | Minimum
Financing Receivable, Credit Quality Indicator [Line Items]
Approximate percentage of portfolio	5.00%
Medium | Maximum
Financing Receivable, Credit Quality Indicator [Line Items]
Approximate percentage of portfolio	10.00%
High
Financing Receivable, Credit Quality Indicator [Line Items]
Approximate percentage of portfolio	10.00%
Total	$ 23,602	23,046
Not Scored
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 255,725	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]
2021	$ 223,787	394,394
2020	331,630	361,048
2019	297,384	254,898
2018	193,965	134,999
2017	86,265	45,852
Prior	36,163	15,738
Sales-type lease receivables | Low
Financing Receivable, Credit Quality Indicator [Line Items]
2021	145,875	256,573
2020	218,083	228,344
2019	189,322	165,244
2018	127,968	87,346
2017	55,954	30,518
Prior	25,132	12,249
Sales-type lease receivables | Medium
Financing Receivable, Credit Quality Indicator [Line Items]
2021	27,370	50,785
2020	44,107	49,946
2019	43,995	37,168
2018	29,079	21,388
2017	15,255	6,470
Prior	5,737	2,375
Sales-type lease receivables | High
Financing Receivable, Credit Quality Indicator [Line Items]
2021	2,866	6,182
2020	5,405	5,396
2019	4,959	3,782
2018	2,952	1,974
2017	1,475	1,051
Prior	1,335	143
Sales-type lease receivables | Not Scored
Financing Receivable, Credit Quality Indicator [Line Items]
2021	47,676	80,854
2020	64,035	77,362
2019	59,108	48,704
2018	33,966	24,291
2017	13,581	7,813
Prior	3,959	971
Sales-type lease receivables | International
Financing Receivable, Credit Quality Indicator [Line Items]
Total	195,085	211,944
Loan receivables
Financing Receivable, Credit Quality Indicator [Line Items]
Total	281,458	290,782
Loan receivables | Low
Financing Receivable, Credit Quality Indicator [Line Items]
Total	191,571	192,971
Loan receivables | Medium
Financing Receivable, Credit Quality Indicator [Line Items]
Total	51,877	61,625
Loan receivables | High
Financing Receivable, Credit Quality Indicator [Line Items]
Total	4,610	4,518
Loan receivables | Not Scored
Financing Receivable, Credit Quality Indicator [Line Items]
Total	33,400	31,668
Loan receivables | International
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 23,692	$ 22,092