Subsequent Events - Additional Information (Detail) (Subsequent Event, USD $) In Millions, except Per Share data, unless otherwise specified	0 Months Ended
Sep. 04, 2014 Pathfinder Therapeutics Inc	Sep. 09, 2014 Dividend Declared
Subsequent Event [Line Items]
Dividend declaration date		Sep. 09, 2014
Dividend declared		$ 0.10
Dividend payable date		Oct. 10, 2014
Dividend record date		Sep. 25, 2014
Business combination aggregate consideration	$ 1.5

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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Aggregate dividends declared during the period for each share of common stock outstanding.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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Date the declared dividend will be paid, in CCYY-MM-DD format.

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-Name Accounting Standards Codification

-Topic 230

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Date the dividend to be paid was declared, in CCYY-MM-DD format.

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Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

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