Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2012
Summary of Significant Accounting Policies (Textual) [Abstract]
Finance receivable charged-off	360 days past due or earlier
Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Acquisition cost and depreciated life of asset	5 years
Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Acquisition cost and depreciated life of asset	3 years
Property Available for Operating Lease [Member]
Summary of Significant Accounting Policies [Line Items]
Acquisition cost and depreciated life of asset	3 years
Acquisition cost and depreciated life of asset	12 months