Balance Sheet Components (Tables)

6 Months Ended

Jun. 30, 2013

Schedule of Inventories

Inventories are comprised of (in thousands):

	June 30, 2013		December 31, 2012
Raw materials	$	6,464	$	7,629
Work in process	3,895		3,889
Finished goods	5,345		3,604
Total Inventories	$	15,704	$	15,122

Schedule of Accrued Liabilities

Accrued liabilities consist of the following (in thousands):

	June 30, 2013		December 31, 2012
Accrued payroll and benefits	$	39,577	$	39,621
Accrued sales rebates	9,547		8,333
Accrued sales tax and value added tax	4,672		5,253
Accrued sales and marketing expenses	3,371		4,088
Accrued warranty	4,453		4,050
Accrued accounts payable	3,981		2,866
Customer deposits	2,054		237
Accrued professional fees	1,160		2,349
Accrued income taxes	1,444		572
Other accrued liabilities	5,517		6,878
Total Accrued Liabilities	$	75,776	$	74,247

Warranty Accrual

The following table reflects the change in our warranty accrual during the six months ended June 30, 2013 and 2012 (in thousands):

	Six Months Ended June 30,
	2013			2012
Balance at beginning of period	$	4,050		$	3,177
Charged to cost of net revenues	2,784			2,113
Actual warranty expenditures	(2,381		)	(1,777		)
Balance at end of period	$	4,453		$	3,513