Collaborative arrangement, estimated variable consideration.

No definition available.

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- Definition

Collaborative arrangement transaction price.

+ References

No definition available.

+ Details

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- Definition

Contract with customer, development milestone payment receivable.

+ References

No definition available.

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- Definition

Contract With Customer Milestone And Royalty Obligation Buy-Out

+ References

No definition available.

+ Details

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- Definition

Upfront non refundable fees.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045

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Collaborative arrangements - Summary of Total Transaction Price (Detail) - Bristol-Myers Squibb - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	May 31, 2020
BMS collaborative arrangement
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Up-front non-refundable payment	$ 120,000
Ide-cel co-development, co-promote and profit share agreement
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Development milestone payments receivable	387,929
Ide-cel Research And Development Services
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Collaboration agreement, transaction price	40,912
Transaction price unsatisfied	0
Ide-cel license and manufacturing services
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Collaboration agreement, transaction price	347,017
Transaction price unsatisfied	1,082
Ide-cel Transaction Price
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Collaboration agreement, transaction price	387,929
Transaction price unsatisfied	1,082
Amended Ide Cel Co Development, Co-Promote And Profit Share Agreement
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Milestone and royalty obligation buy-out	184,029	$ 200,000
Vectors and associated payload
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Estimated variable consideration	83,900
bb21217 transaction price
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Collaboration agreement, transaction price	32,774
Transaction price unsatisfied	27,330
bb21217 license agreement
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Milestone and royalty obligation buy-out	15,971
Manufacturing services
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Estimated variable consideration	1,803
bb21217 research and development services
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Collaboration agreement, transaction price	5,444
Transaction price unsatisfied	0
bb21217 license and manufacturing services
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Collaboration agreement, transaction price	27,330
Transaction price unsatisfied	$ 27,330