Balance Sheet Details (Accumulated other comprehensive income) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Accumulated other comprehensive income
Accumulated Other Comprehensive Income, Balance as of December 31, 2012	$ 12,531
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	2,428
Other Comprehensive Income (Loss), Net of Tax	4,592
Accumulated Other Comprehensive Income, Balance as of December 31, 2013	17,123
Pension Plan, Defined Benefit [Member]
Accumulated other comprehensive income
Accumulated Other Comprehensive Income, Balance as of December 31, 2012	(3,845)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	0
Other Comprehensive Income (Loss), Net of Tax	2,164
Foreign Currency Translation Adjustment [Member]
Accumulated other comprehensive income
Accumulated Other Comprehensive Income, Balance as of December 31, 2012	16,376
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	2,428
Other Comprehensive Income (Loss), Net of Tax	2,428
Selling, General and Administrative Expenses [Member]
Accumulated other comprehensive income
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	2,164
Selling, General and Administrative Expenses [Member] | Pension Plan, Defined Benefit [Member]
Accumulated other comprehensive income
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	2,164
Selling, General and Administrative Expenses [Member] | Foreign Currency Translation Adjustment [Member]
Accumulated other comprehensive income
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	$ 0