Finance Assets (Finance Receivables) (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net investment in finance receivables	$ 1,476,915	$ 1,567,157
North America
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net investment in finance receivables	1,210,259	1,311,718
International
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net investment in finance receivables	266,656	255,439
Sales-type lease receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross finance receivables	1,307,305	1,361,315
Unguaranteed residual values	89,543	103,845
Unearned income	(276,195)	(284,366)
Allowance for credit losses	(9,871)	(10,894)
Net investment in receivables	1,110,782	1,169,900
Sales-type lease receivables \| North America
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross finance receivables	1,023,206	1,088,053
Unguaranteed residual values	75,242	90,190
Unearned income	(213,852)	(223,908)
Allowance for credit losses	(7,103)	(8,247)
Net investment in receivables	877,493	946,088
Sales-type lease receivables \| International
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross finance receivables	284,099	273,262
Unguaranteed residual values	14,301	13,655
Unearned income	(62,343)	(60,458)
Allowance for credit losses	(2,768)	(2,647)
Net investment in receivables	233,289	223,812
Loan receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross finance receivables	374,182	406,863
Allowance for credit losses	(8,049)	(9,606)
Net investment in receivables	366,133	397,257
Loan receivables \| North America
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross finance receivables	339,726	374,147
Allowance for credit losses	(6,960)	(8,517)
Net investment in receivables	332,766	365,630
Loan receivables \| International
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross finance receivables	34,456	32,716
Allowance for credit losses	(1,089)	(1,089)
Net investment in receivables	$ 33,367	$ 31,627
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Lease period	3 years
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Lease period	5 years

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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