Finance Assets (Allowance for Credit Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance for Loan and Lease Losses [Roll Forward]
Balance at	$ 21,690	$ 28,004	$ 36,949
Amounts charged to expense	13,371	11,388	17,075
Accounts written off	(14,561)	(17,702)	(26,020)
Balance at	20,500	21,690	28,004
North America | Sales-type Lease Receivables
Allowance for Loan and Lease Losses [Roll Forward]
Balance at	6,606	10,125	14,165
Amounts charged to expense	5,136	1,189	4,346
Accounts written off	(3,495)	(4,708)	(8,386)
Balance at	8,247	6,606	10,125
North America | Loan Receivables
Allowance for Loan and Lease Losses [Roll Forward]
Balance at	10,024	11,068	11,165
Amounts charged to expense	6,238	8,286	10,237
Accounts written off	(7,745)	(9,330)	(10,334)
Balance at	8,517	10,024	11,068
International | Sales-type Lease Receivables
Allowance for Loan and Lease Losses [Roll Forward]
Balance at	3,542	5,023	9,703
Amounts charged to expense	1,161	890	866
Accounts written off	(2,056)	(2,371)	(5,546)
Balance at	2,647	3,542	5,023
International | Loan Receivables
Allowance for Loan and Lease Losses [Roll Forward]
Balance at	1,518	1,788	1,916
Amounts charged to expense	836	1,023	1,626
Accounts written off	(1,265)	(1,293)	(1,754)
Balance at	$ 1,089	$ 1,518	$ 1,788