Balance Sheet Details (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015
Schedule of accumulated other comprehensive income
Balance as of December 31, 2014	$ 4,723
Other comprehensive income before reclassification	2,613
Net other comprehensive income for the three months ended March 31, 2015	2,650
Balance as of March 31, 2015	7,373
Foreign Currency Translation Adjustment
Schedule of accumulated other comprehensive income
Balance as of December 31, 2014	8,359
Other comprehensive income before reclassification	2,613
Net other comprehensive income for the three months ended March 31, 2015	2,613
Balance as of March 31, 2015	10,972
Defined Benefit Pension Plan
Schedule of accumulated other comprehensive income
Balance as of December 31, 2014	(3,636)
Other comprehensive income before reclassification	0
Net other comprehensive income for the three months ended March 31, 2015	37
Balance as of March 31, 2015	(3,599)
Cost of Sales, Selling, General and Administrative and Research and Development Expense
Schedule of accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive income	37
Cost of Sales, Selling, General and Administrative and Research and Development Expense | Foreign Currency Translation Adjustment
Schedule of accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive income	0
Cost of Sales, Selling, General and Administrative and Research and Development Expense | Defined Benefit Pension Plan
Schedule of accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive income	$ 37