Note 6—Commitments

The Company leases certain manufacturing equipment, office equipment, vehicles and office, warehouse and manufacturing facilities under operating leases. Some of the leases provide for escalation of the lease payments as maintenance costs and taxes increase. The leases expire at various times through 2020. Leases for office space and manufacturing facilities generally contain renewal options. Rental expense for the years ended December 31, 2012, 2011 and 2010 was $9.1 million, $10.3 million and $11.0 million, respectively.

The Company is obligated under a capital lease that expires in 2023. As of December 31, 2012, property, plant and equipment include the following amounts under capital leases (in thousands):

Buildings and building improvements	$	12,207
Less accumulated depreciation		(4,507	)
	$	7,700


Capital lease obligations outstanding consist of the following:
	December 31,
(in thousands)	2012		2011
Capital lease obligations	$	10,600	$	11,019
Less current installments		497		419
Capital lease obligations, less current installments	$	10,103	$	10,600

Future minimum lease payments under noncancelable operating leases and future minimum capital lease payments are as follows (in thousands):


	Capital		Operating
Year ending December 31,	Leases		Leases
2013	$	1,550	$	6,817
2014		1,581		5,855
2015		1,613		5,492
2016		1,645		3,644
2017		1,678		866
Thereafter		9,373		2,709
Total minimum lease payments	$	17,440	$	25,383
Less: amount representing interest		6,840
Present value of minimum lease payments		10,600
Less: current installments		497
Capital lease obligations, less current installments	$	10,103

The Company enters into contractual commitments to deliver products and services in the ordinary course of business. The Company believes that all such contractual commitments will be performed or renegotiated such that no material adverse financial impact on the Company's financial position, results of operations or liquidity will result from these commitments.