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Nature of Operations and Summary of Significant Accounting Policies Direct Financing Leases (Details)	12 Months Ended
	Dec. 31, 2015
Minimum
Unguaranteed Residual Percentage Of Cost [Line Items]
Unguaranteed residual percent of cost	3.00%
Maximum
Unguaranteed Residual Percentage Of Cost [Line Items]
Unguaranteed residual percent of cost	20.00%

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Unguaranteed Residual Percent Of Cost

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- Definition

[Line Items] for Unguaranteed Residual Percentage Of Cost [Table]

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