v2.4.0.8

Intangible Assets, Net - Schedule of Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2013 | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | --- | ---
Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | $ 49,242 | $ 34,988 | $ 34,988
Accumulated Amortization | (6,979) | (5,482) | (2,455)
Net | 42,263 | 29,506 | 32,533
Patents and Related Technologies [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | 34,342 | 34,342 | 34,342
Accumulated Amortization | (6,979) | (4,851) | (2,014)
Net | 27,363 | 29,491 | 32,328
In- Process Research and Development [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | 14,900 |  |
Accumulated Amortization |  |  |
Net | 14,900 |  |
Favorable Rent Asset [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Gross Carrying Amount |  | 646 | 646
Accumulated Amortization |  | (631) | (441)
Net |  | $ 15 | $ 205

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