Finance Assets (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Loans and Leases Receivable, Net Amount [Abstract]
Net investment in finance receivables	$ 1,733,858		$ 1,820,025
Allowance for Loan and Lease Losses [Roll Forward]
Balance Beginning	28,110	$ 36,949
Amounts charged to expense	4,132	7,786
Write-offs and other	(8,636)	(11,064)
Balance Closing	23,606	33,671
Financing Receivable, Recorded Investment, Aging [Abstract]
1 to 30 days	1,875,144		1,970,209
31 to 60 days	38,584		39,895
61 to 90 days	25,372		32,603
More than 90 days	36,022		35,238
Total	1,975,122		2,077,945
Still accruing interest	9,477		8,448
Not accruing interest	26,545		26,790
Total	$ 36,022		35,238
Revenue recognition resume period	60 days
Low
Financing Receivable, Recorded Investment, Aging [Abstract]
Approximate percentage of portfolio	30.00%
Medium
Financing Receivable, Recorded Investment, Aging [Abstract]
Approximate percentage of portfolio	40.00%
High
Financing Receivable, Recorded Investment, Aging [Abstract]
Approximate percentage of portfolio	30.00%
North America
Loans and Leases Receivable, Net Amount [Abstract]
Net investment in finance receivables	$ 1,416,438		1,477,427
International
Loans and Leases Receivable, Net Amount [Abstract]
Net investment in finance receivables	317,420		342,598
Sales-type lease receivables
Sales-type lease receivables
Gross finance receivables	1,565,201		1,653,293
Unguaranteed residual values	118,447		123,496
Unearned income	(336,105)		(353,306)
Allowance for credit losses	(11,694)		(15,410)
Net investment in sales-type lease receivables	1,335,849		1,408,073
Financing Receivable, Recorded Investment, Aging [Abstract]
Sales-type Lease Receivables - Total	$ 1,565,201		1,653,293
Revenue recognition discontinuation period	120 days
Sales-type lease receivables | North America
Sales-type lease receivables
Gross finance receivables	$ 1,236,030		1,286,624
Unguaranteed residual values	101,622		105,205
Unearned income	(262,081)		(270,196)
Allowance for credit losses	(7,973)		(10,281)
Net investment in sales-type lease receivables	1,067,598		1,111,352
Allowance for Loan and Lease Losses [Roll Forward]
Balance Beginning	10,281	14,165
Amounts charged to expense	112	2,360
Write-offs and other	(2,420)	(3,382)
Balance Closing	7,973	13,143
Financing Receivable, Recorded Investment, Aging [Abstract]
1 to 30 days	1,171,926		1,217,623
31 to 60 days	22,927		23,242
61 to 90 days	18,667		24,198
More than 90 days	22,510		21,561
Sales-type Lease Receivables - Total	1,236,030		1,286,624
Still accruing interest	6,658		5,931
Not accruing interest	15,852		15,630
Total	22,510		21,561
Sales-type lease receivables | North America | Low
Sales-type lease receivables
Gross finance receivables	923,475		936,979
Financing Receivable, Recorded Investment, Aging [Abstract]
Sales-type Lease Receivables - Total	923,475		936,979
Sales-type lease receivables | North America | Medium
Sales-type lease receivables
Gross finance receivables	215,444		230,799
Financing Receivable, Recorded Investment, Aging [Abstract]
Sales-type Lease Receivables - Total	215,444		230,799
Sales-type lease receivables | North America | High
Sales-type lease receivables
Gross finance receivables	43,248		45,202
Financing Receivable, Recorded Investment, Aging [Abstract]
Sales-type Lease Receivables - Total	43,248		45,202
Sales-type lease receivables | North America | Not Scored
Sales-type lease receivables
Gross finance receivables	53,863		73,644
Financing Receivable, Recorded Investment, Aging [Abstract]
Sales-type Lease Receivables - Total	53,863		73,644
Sales-type lease receivables | International
Sales-type lease receivables
Gross finance receivables	329,171		366,669
Unguaranteed residual values	16,825		18,291
Unearned income	(74,024)		(83,110)
Allowance for credit losses	(3,721)		(5,129)
Net investment in sales-type lease receivables	268,251		296,721
Allowance for Loan and Lease Losses [Roll Forward]
Balance Beginning	5,129	9,703
Amounts charged to expense	(447)	(350)
Write-offs and other	(961)	(1,749)
Balance Closing	3,721	7,604
Financing Receivable, Recorded Investment, Aging [Abstract]
1 to 30 days	310,382		347,236
31 to 60 days	5,785		6,207
61 to 90 days	3,575		4,494
More than 90 days	9,429		8,732
Sales-type Lease Receivables - Total	329,171		366,669
Still accruing interest	2,819		2,517
Not accruing interest	6,610		6,215
Total	9,429		8,732
Loan receivables
Loans and Leases Receivable, Net Amount [Abstract]
Loan receivables	409,921		424,652
Allowance for credit losses	(11,912)		(12,700)
Net investment in loan receivables	$ 398,009		411,952
Financing Receivable, Recorded Investment, Aging [Abstract]
Revenue recognition discontinuation period	90 days
Loan receivables | North America
Loans and Leases Receivable, Net Amount [Abstract]
Loan receivables	$ 359,033		376,987
Allowance for credit losses	(10,193)		(10,912)
Net investment in loan receivables	348,840		366,075
Allowance for Loan and Lease Losses [Roll Forward]
Balance Beginning	10,912	11,165
Amounts charged to expense	3,913	4,742
Write-offs and other	(4,632)	(5,132)
Balance Closing	10,193	10,775
Financing Receivable, Recorded Investment, Aging [Abstract]
1 to 30 days	344,290		359,672
31 to 60 days	8,274		9,245
61 to 90 days	2,790		3,498
More than 90 days	3,679		4,572
Total			376,987
Still accruing interest	0		0
Not accruing interest	3,679		4,572
Total	3,679		4,572
Loan receivables | North America | Low
Loans and Leases Receivable, Net Amount [Abstract]
Loan receivables	248,331		259,436
Loan receivables | North America | Medium
Loans and Leases Receivable, Net Amount [Abstract]
Loan receivables	89,725		96,243
Loan receivables | North America | High
Loans and Leases Receivable, Net Amount [Abstract]
Loan receivables	10,287		10,913
Loan receivables | North America | Not Scored
Loans and Leases Receivable, Net Amount [Abstract]
Loan receivables	10,690		10,395
Loan receivables | International
Loans and Leases Receivable, Net Amount [Abstract]
Loan receivables	50,888		47,665
Allowance for credit losses	(1,719)		(1,788)
Net investment in loan receivables	49,169		45,877
Allowance for Loan and Lease Losses [Roll Forward]
Balance Beginning	1,788	1,916
Amounts charged to expense	554	1,034
Write-offs and other	(623)	(801)
Balance Closing	1,719	$ 2,149
Financing Receivable, Recorded Investment, Aging [Abstract]
1 to 30 days	48,546		45,678
31 to 60 days	1,598		1,201
61 to 90 days	340		413
More than 90 days	404		373
Total			47,665
Still accruing interest	0		0
Not accruing interest	404		373
Total	$ 404		$ 373