Finance Assets and Lessor Operating Leases (Allowance for Credit Losses) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Financing Receivable, Allowance for Credit Loss [Line Items]
Revenue recognition resume period (less than)	60 days
Allowance for Credit Losses
Balance Beginning	$ 20,222	$ 18,633
Amounts charged to expense	9,375	13,093
Write-offs and other	(9,473)	(11,086)
Balance Closing	$ 20,124	20,640
Sales-type lease receivables
Financing Receivable, Allowance for Credit Loss [Line Items]
Revenue recognition discontinuation period (more than)	120 days
Sales-type lease receivables | North America
Allowance for Credit Losses
Balance Beginning	$ 10,252	7,721
Amounts charged to expense	4,587	7,037
Write-offs and other	(3,667)	(3,979)
Balance Closing	11,172	10,779
Sales-type lease receivables | International
Allowance for Credit Losses
Balance Beginning	2,356	2,794
Amounts charged to expense	801	829
Write-offs and other	(940)	(1,359)
Balance Closing	$ 2,217	2,264
Loan receivables
Financing Receivable, Allowance for Credit Loss [Line Items]
Revenue recognition discontinuation period (more than)	90 days
Loan receivables | North America
Allowance for Credit Losses
Balance Beginning	$ 6,777	7,098
Amounts charged to expense	3,547	4,896
Write-offs and other	(4,308)	(5,282)
Balance Closing	6,016	6,712
Loan receivables | International
Allowance for Credit Losses
Balance Beginning	837	1,020
Amounts charged to expense	440	331
Write-offs and other	(558)	(466)
Balance Closing	$ 719	$ 885