Allowance for Credit Losses (Tables)

6 Months Ended

Jun. 30, 2013

Financing Receivable, Allowance for Credit Losses [Line Items]

Allowance for credit losses and recorded investment in financing receivables

The following table summarizes the Company’s allowance for credit losses for the six months endedJune 30, 2013 and 2012:

	Finance Leases			Notes Receivable			Total
Allowance for credit losses
Balance at January 1, 2013	$	525		$	2,047		$	2,572
Provision for credit losses	7			—			7
Recoveries	3			—			3
Write-offs	(90		)	(2,047		)	(2,137		)
Balance at June 30, 2013	$	445		$	—		$	445
Balance at January 1, 2012	$	210		$	2,047		$	2,257
Provision for credit losses	247			—			247
Recoveries	41			—			41
Write-offs	—			—			—
Balance at June 30, 2012	$	498		$	2,047		$	2,545

Summarizes the Company's aging of past-due notes receivable

The following table summarizes the Company’s aging of past-due notes receivable balances:

	June 30, 2013		December 31, 2012
30-59 days past due	$	—	$	—
60-89 days past due	—		—
> 89 days past due	—		1,840
Total past due	$	—	$	1,840