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Percentage of Accounts Receivable by Significant Customers (Detail) (Accounts Receivable)	Sep. 30, 2013	Dec. 31, 2012
Orencia Royalties from Bristol
Concentration Risk [Line Items]
Accounts receivable, percentage by customer	37.00%	31.00%
Bioprocessing Customer A
Concentration Risk [Line Items]
Accounts receivable, percentage by customer	20.00%	21.00%
Bioprocessing Customer B
Concentration Risk [Line Items]
Accounts receivable, percentage by customer	8.00%	4.00%
Bioprocessing Customer C
Concentration Risk [Line Items]
Accounts receivable, percentage by customer	15.00%	5.00%
Tenant improvement allowance due from landlord
Concentration Risk [Line Items]
Accounts receivable, percentage by customer	14.00%
Pfizer
Concentration Risk [Line Items]
Accounts receivable, percentage by customer	1.00%	38.00%

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- Definition

Concentration of Risk Accounts Receivable Percentage

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No definition available.

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