Balance Sheet Account Detail (Goodwill and Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Goodwill, Finite-lived, and Indefinite-lived Intangible Assets [Line Items]
Goodwill	$ 29,103	[1],[2]	$ 29,022	[1],[2]
Indefinite lived intangibles	2,708		42,808
Intangible assets (excluding goodwill), net	43,096		43,356
Developed technology
Goodwill, Finite-lived, and Indefinite-lived Intangible Assets [Line Items]
Finite lived intangibles	40,100	[3]	0	[3]
Accumulated amortization	(48)		0
Finite lived intangibles, net	40,052		0
Patent
Goodwill, Finite-lived, and Indefinite-lived Intangible Assets [Line Items]
Finite lived intangibles	100		100
Accumulated amortization	(95)		(75)
Finite lived intangibles, net	5		25
License
Goodwill, Finite-lived, and Indefinite-lived Intangible Assets [Line Items]
Finite lived intangibles	100		100
Accumulated amortization	(41)		(12)
Finite lived intangibles, net	59		88
Customer relationships
Goodwill, Finite-lived, and Indefinite-lived Intangible Assets [Line Items]
Finite lived intangibles	544		522
Accumulated amortization	(272)		(87)
Finite lived intangibles, net	272		435
In-process research and development
Goodwill, Finite-lived, and Indefinite-lived Intangible Assets [Line Items]
Indefinite lived intangibles	0	[3]	40,100	[3]
Trademarks and trade names
Goodwill, Finite-lived, and Indefinite-lived Intangible Assets [Line Items]
Indefinite lived intangibles	$ 2,708		$ 2,708

[1] $2.0 million of goodwill is related to a 2012 acquisition.

[2] Difference in goodwill value between these dates is solely due to a foreign currency translation adjustment.

[3] Was reclassified in the first quarter of 2013 to finite lived intangibles, which coincided with the European commercial launch of the product (Nellix System) associated with this intangible asset. A significant portion of this intangible asset will not begin amortization until the U.S. launch of this product, currently scheduled for 2016.