Research and Development Arrangement with Federal Government, Agreement Value

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- Definition

Research and Development Arrangement with Federal Government, Customer Funding to Offset Costs Incurred, Amount Collected

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No definition available.

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- Definition

Research and Development Arrangement with Federal Government, Intended Initial Contribution

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- Definition

Research and Development Arrangement with Federal Government, Potential Total Contribution

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- Definition

Research and Development Expense, Net of Reimbursements

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- Definition

Research and Development Expense, Not Charged To Contractual Arrangements

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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.

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- Definition

The net amount of research and development costs incurred for a fixed-price, best-efforts research and development cost-sharing arrangement with the Federal Government.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 912
-SubTopic 730
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6472174&loc=d3e58812-109433

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- Definition

The amount of customer funding recorded as an offset to costs incurred for a fixed-price, best-efforts research and development cost-sharing arrangement with the Federal Government.

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- Definition

The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 730
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

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Summary of Significant Accounting Policies - Research and Development (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended			22 Months Ended
	Dec. 31, 2015	Dec. 31, 2016	Nov. 30, 2015	Nov. 30, 2014	Sep. 30, 2016
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development expenses	$ 0.0	$ 0.0	$ 32.1	$ 0.0
Company [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development expenses	4.6	43.0	74.4	51.9
Customers [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development expenses	$ 33.7	513.0	$ 485.8	$ 481.2
U.S. Air Force [Member] \| U.S. Government Contractual Arrangements [Member] \| Liquid Booster Engine Development Project [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
AR1 R&D costs expensed and not applied to contracts					$ (32.1)
U.S. Air Force [Member] \| U.S. Government Contractual Arrangements [Member] \| AR-1 [Member] \| Liquid Booster Engine Development Project [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development expenses		169.3
AR1 R&D costs net of reimbursements		71.4
AR1 R&D costs expensed and not applied to contracts		(32.1)
Net AR1 R&D costs applied to contracts		39.3
Aerojet Rocketdyne, Inc. [Member] \| U.S. Air Force [Member] \| U.S. Government Contractual Arrangements [Member] \| Liquid Booster Engine Development Project [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Intended initial contribution		52.7
Aerojet Rocketdyne and United Launch Alliance [Member] \| U.S. Air Force [Member] \| U.S. Government Contractual Arrangements [Member] \| Liquid Booster Engine Development Project [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Agreement value		804.0
Potential total contribution		536.0
Aerojet Rocketdyne and Partners [Member] \| U.S. Air Force [Member] \| U.S. Government Contractual Arrangements [Member] \| Liquid Booster Engine Development Project [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Potential total contribution		268.0
U.S. Air Force and United Launch Alliance [Member] \| U.S. Air Force [Member] \| U.S. Government Contractual Arrangements [Member] \| Liquid Booster Engine Development Project [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Less amounts funded by other parties		(87.5)
Customer funding to offset costs incurred		97.9
U.S. Air Force [Member] \| U.S. Air Force [Member] \| U.S. Government Contractual Arrangements [Member] \| Liquid Booster Engine Development Project [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Intended initial contribution		115.3
U.S. Air Force [Member] \| U.S. Air Force [Member] \| U.S. Government Contractual Arrangements [Member] \| AR-1 [Member] \| Liquid Booster Engine Development Project [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Less amounts funded by other parties		(92.9)
ULA [Member] \| U.S. Air Force [Member] \| U.S. Government Contractual Arrangements [Member] \| Liquid Booster Engine Development Project [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Intended initial contribution		5.0
ULA [Member] \| U.S. Air Force [Member] \| U.S. Government Contractual Arrangements [Member] \| AR-1 [Member] \| Liquid Booster Engine Development Project [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Less amounts funded by other parties		$ (5.0)