Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Future Minimum Lease Payments Under Noncancelable Operating Leases

Future minimum lease payments under non-cancelable operating leases at December 31, 2014, are as follows (in thousands):

	Operating Leases
Year ending December 31,
2015	$	10,412
2016	8,908
2017	8,099
2018	7,943
2019	7,892
Thereafter	6,123
Total minimum payments	$	49,377

Summary of Warranty Accrual Included in Accrued Liabilities

Activity for the Company’s warranty accrual, which is included in accrued liabilities, is summarized below (in thousands):

	Year ended December 31,
	2014			2013			2012
Balance at beginning of period	$	3,606		$	4,292		$	5,558
Transfer to Aurora as part of the sale of discontinued operations	—			(939		)	—
Accrual for current period warranties	7,281			7,158			5,798
Warranty costs incurred	(6,645		)	(6,905		)	(7,064		)
Balance at end of period	$	4,242		$	3,606		$	4,292