Estimated Costs To Complete On Loss Contracts

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- Definition

Represents the number of steps involved in the process of impairment testing.

+ References

No definition available.

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- Definition

Represents the increase in operating income as a result of aggregate changes in estimates related to contracts accounted for using the percentage-of-completion method recorded using the cumulative catch-up method of accounting.

+ References

No definition available.

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- Definition

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

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-Publisher FASB
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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

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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- Definition

For an unclassified balance sheet, the carrying amount (net of accumulated amortization) as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain.

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Summary of Significant Accounting Policies (Details) $ / shares in Units, $ in Thousands	3 Months Ended							9 Months Ended	12 Months Ended
	Dec. 31, 2015 USD ($) $ / shares	Oct. 04, 2015 USD ($) $ / shares	Jul. 05, 2015 USD ($) $ / shares	Mar. 31, 2015 USD ($) $ / shares	Dec. 31, 2014 $ / shares	Sep. 28, 2014 USD ($) $ / shares	Jun. 29, 2014 USD ($) $ / shares	Dec. 31, 2015 USD ($) step	Mar. 31, 2015 USD ($)	Mar. 31, 2014 USD ($)	Dec. 28, 2014 USD ($)
Concentration risk
Increase in operating income								$ 38,000	$ 92,000	$ 83,000
Estimated costs to complete on loss contracts	$ 1,392,218			$ 1,505,084				$ 1,392,218	$ 1,505,084
Number of steps involved in the process of impairment testing \| step								2
Dividend declared (in dollars per share) \| $ / shares	$ 0.26	$ 0.26	$ 0	$ 0.58	$ 0.32	$ 0.32	$ 0.32
Concentration risk by sales \| Customer concentration
Concentration risk
Percentage of concentration risk								100.00%	100.00%	100.00%
Concentration risk by sales \| Customer concentration \| Total U.S. Government customers
Concentration risk
Percentage of concentration risk								70.00%	75.00%	84.00%
Concentration risk by sales \| Customer concentration \| U.S. Army
Concentration risk
Percentage of concentration risk								15.00%	26.00%	32.00%
Concentration risk by sales \| Customer concentration \| U.S. Navy
Concentration risk
Percentage of concentration risk								11.00%	15.00%	17.00%
Concentration risk by sales \| Customer concentration \| NASA
Concentration risk
Percentage of concentration risk								23.00%	13.00%	14.00%
Concentration risk by sales \| Customer concentration \| U.S. Air Force
Concentration risk
Percentage of concentration risk								4.00%	7.00%	7.00%
Concentration risk by sales \| Customer concentration \| Other U.S. Government customers
Concentration risk
Percentage of concentration risk								17.00%	14.00%	14.00%
Concentration risk by sales \| Customer concentration \| Commercial and foreign customers
Concentration risk
Percentage of concentration risk								30.00%	25.00%	16.00%
Accounting Standards Update 2015-03 \| Other noncurrent assets
Concentration risk
Deferred issuance costs	$ (14,000)	$ 0	$ 0	$ (17,000)		$ 0	$ 0	$ (14,000)	$ (17,000)		$ 0
Accounting Standards Update 2015-03 \| Long-term debt
Concentration risk
Deferred issuance costs	$ 14,000	$ 15,000	$ 16,000	$ 17,000		$ 22,000	$ 23,000	$ 14,000	$ 17,000		$ 21,000