Balance Sheet Details (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Schedule of accumulated other comprehensive income
Balance as of December 31, 2012	$ 12,531
Other comprehensive loss before reclassifications	(2,844)
Net other comprehensive income (loss) for three months ended March 31, 2013	(2,780)
Balance as of March 31, 2013	9,751
Foreign Currency Translation Adjustment
Schedule of accumulated other comprehensive income
Balance as of December 31, 2012	16,376
Other comprehensive loss before reclassifications	(2,844)
Net other comprehensive income (loss) for three months ended March 31, 2013	(2,844)
Balance as of March 31, 2013	13,532
Defined Benefit Pension Plan
Schedule of accumulated other comprehensive income
Balance as of December 31, 2012	(3,845)
Other comprehensive loss before reclassifications	0
Net other comprehensive income (loss) for three months ended March 31, 2013	64
Balance as of March 31, 2013	(3,781)
Selling, General and Administrative Expenses [Member]
Schedule of accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive income (loss)	64
Selling, General and Administrative Expenses [Member] | Foreign Currency Translation Adjustment
Schedule of accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive income (loss)	0
Selling, General and Administrative Expenses [Member] | Defined Benefit Pension Plan
Schedule of accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive income (loss)	$ 64