Balance Sheet Details (Tables)

6 Months Ended

Jun. 30, 2015

Balance Sheet Related Disclosures [Abstract]

Schedule of inventories

	June 30, 2015			December 31, 2014
Raw materials and purchased parts	$	21,591		$	23,042
Work-in-process	3,667			2,522
Finished goods	19,234			23,311
Reserves	(3,345		)	(4,019		)
Total inventories	$	41,147		$	44,856

Schedule of change in the carrying amount of goodwill

The change in the carrying amount of goodwill from December 31, 2014 to June 30, 2015 is as follows:

Balance at December 31, 2014	$	23,599
Foreign currency translation adjustments	1,316
Balance at June 30, 2015	$	24,915

Schedule of accumulated other comprehensive income

	Foreign Currency Translation Adjustment		Defined Benefit Pension Plan			Accumulated Other Comprehensive Income		Affected Line Items in the Statement of Operations
Balance as of December 31, 2014	$	8,359	$	(3,636	)	$	4,723
Other comprehensive income before reclassification	5,526		—			5,526
Amounts reclassified from accumulated other comprehensive income	—		75			75		Cost of Sales, Selling, General and Administrative and Research and Development Expense
Net other comprehensive income for the six months ended June 30, 2015	5,526		75			5,601
Balance as of June 30, 2015	$	13,885	$	(3,561	)	$	10,324