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- Definition

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+ References

No definition available.

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- Definition

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+ References

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Amount of deferred revenue recognized for transactions arising during the current reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an Entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 13.A.4(a).Q1)
-URI http://asc.fasb.org/extlink&oid=65893310&loc=d3e214044-122780

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 13.A.3)
-URI http://asc.fasb.org/extlink&oid=65893310&loc=d3e214044-122780

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Collaboration and License Agreements - RegenxBio License (Details) - Regenx Bio SMA License - ReGenX - USD ($) $ in Thousands		12 Months Ended
	Mar. 21, 2014	Dec. 31, 2014	Jan. 08, 2018
Maximum
Collaboration and License Agreements
Potential milestone payments to be paid	$ 12,250
Subsequent Event [Member]
Collaboration and License Agreements
Up-front payment, agreed-upon amount			$ 80,000
Research and development expenses \| Up-front Payment Arrangement [Member]
Collaboration and License Agreements
Up-front payment made		$ 2,000