Commitments, Contingencies and Guarantees - Schedule of Product Warranty Liability Activity (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Beginning balances	$ 2,551	$ 2,695	$ 3,870	$ 1,937
Charged to cost of revenue	3,928	1,291	4,200	3,119
Settlements of warranty claims	(1,801)	(1,169)	(3,392)	(2,239)
Ending balances	$ 4,678	$ 2,817	$ 4,678	$ 2,817