Allowance for Credit Losses (Tables)

12 Months Ended

Dec. 31, 2014

Receivables [Abstract]

Allowance for credit losses and recorded investment in financing receivables

The following table summarizes the Company’s allowance for credit losses and amount of financing receivables evaluated for impairment:

	Finance Leases			Notes Receivable			Total
Allowance for credit losses
Balance at January 1, 2013	$	525		$	2,047		$	2,572
Provision for credit losses	8			4,134			4,142
Recoveries	3			—			3
Write-offs	(97		)	(2,047		)	(2,144		)
Balance at December 31, 2013	$	439		$	4,134		$	4,573
Provision for credit losses	243			—			243
Write-offs	(297		)	—			(297		)
Balance at December 31, 2014	$	385		$	4,134		$	4,519

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

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

	December 31,
	2014		2013
30-59 days past due	$	85	$	85
60-89 days past due	—		—
> 89 days past due	1,518		—
Total past due	$	1,603	$	85