Finance Assets and Lessor Operating Leases (Allowance for Credit Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Allowance for Credit Losses
Balance at	$ 20,222	$ 18,633	$ 20,500
Amounts charged to expense	12,144	16,600	15,607
Accounts written off	(12,715)	(15,011)	(17,474)
Balance at	19,651	20,222	18,633
Sales-type lease receivables | North America
Allowance for Credit Losses
Balance at	10,253	7,721	8,247
Amounts charged to expense	5,672	7,928	7,544
Accounts written off	(5,005)	(5,396)	(8,070)
Balance at	10,920	10,253	7,721
Sales-type lease receivables | International
Allowance for Credit Losses
Balance at	2,355	2,794	2,647
Amounts charged to expense	1,157	1,315	1,280
Accounts written off	(1,427)	(1,754)	(1,133)
Balance at	2,085	2,355	2,794
Loan receivables | North America
Allowance for Credit Losses
Balance at	6,777	7,098	8,517
Amounts charged to expense	4,746	6,825	6,273
Accounts written off	(5,617)	(7,146)	(7,692)
Balance at	5,906	6,777	7,098
Loan receivables | International
Allowance for Credit Losses
Balance at	837	1,020	1,089
Amounts charged to expense	569	532	510
Accounts written off	(666)	(715)	(579)
Balance at	$ 740	$ 837	$ 1,020