Balance Sheet Details (Details 4) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013
Schedule of accumulated other comprehensive income
Balance as of December 31, 2012	$ 12,531
Other comprehensive loss before reclassification	(2,420)
Net other comprehensive income (loss) for three months ended June 30, 2013	(2,293)
Balance as of June 30, 2013	10,238
Foreign Currency Translation Adjustment [Member]
Schedule of accumulated other comprehensive income
Balance as of December 31, 2012	16,376
Other comprehensive loss before reclassification	(2,420)
Net other comprehensive income (loss) for three months ended June 30, 2013	(2,420)
Balance as of June 30, 2013	13,956
Defined Benefit Pension Plan [Member]
Schedule of accumulated other comprehensive income
Balance as of December 31, 2012	(3,845)
Other comprehensive loss before reclassification	0
Net other comprehensive income (loss) for three months ended June 30, 2013	127
Balance as of June 30, 2013	(3,718)
Selling, General and Administrative Expenses
Schedule of accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive income (loss)	127
Selling, General and Administrative Expenses | Foreign Currency Translation Adjustment [Member]
Schedule of accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive income (loss)	0
Selling, General and Administrative Expenses | Defined Benefit Pension Plan [Member]
Schedule of accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive income (loss)	$ 127