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Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Operating Leases [Line Items] |  |  |
Deferred rent liability | $ 2.9 | $ 2.8 |
Lessee leasing arrangements, operating leases, renewal term | 5 years |  |
Rent expense | $ 2.7 | $ 2.7 | $ 2.9
Lease [Member] | Office and Laboratory Space [Member] |  |  |
Operating Leases [Line Items] |  |  |
Lease expiration date | Mar. 31, 2018 |  |
Lease [Member] | Manufacturing Facilities [Member] |  |  |
Operating Leases [Line Items] |  |  |
Lease expiration date | Dec. 31, 2014 |  |
Sublease [Member] | Office and Laboratory Space [Member] |  |  |
Operating Leases [Line Items] |  |  |
Lease expiration date | Dec. 31, 2018 |  |

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- Details
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- Definition The cumulative difference between the rental payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense over the term of the leased property by the lessor or lessee, respectively. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7501430&loc=d3e39896-112707 + Details
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- Definition Date which lease or group of leases is set to expire, in CCYY-MM-DD format. + References No definition available. + Details
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- Definition Term of the lessee's leasing arrangement renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
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