Percentage Of Contract Revenue To Total Revenue

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Represents the Ratio of shares of common stock to be distributed to shareholders.

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Significant Accounting Policies [Line Items]

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A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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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

Amount of receivable reflecting the cost incurred on uncompleted contracts in excess of related billings.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Amount of obligation due after one year or beyond the normal operating cycle, if longer.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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No definition available.

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The aggregate carrying amounts, as of the balance sheet date, of assets not separately disclosed in the balance sheet.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Discount rate from fair value on purchase date that participants pay for shares.

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- Definition

Value, after forfeitures, of stock or other type of equity granted of any equity-based compensation plan other than an employee stock ownership plan (ESOP).

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Gross value of stock (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP). Stock issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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- Definition

Amount of stock repurchase plan authorized.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Number of shares that have been repurchased during the period and are being held in treasury.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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The aggregate amount of manufacturing or production costs and any related deferred costs (for example, initial tooling costs) that exceeds the aggregate estimated cost of all in-process and delivered units on the basis of the estimated average cost of all units expected to be produced under long-term contracts and programs not yet complete.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ / shares in Units, $ in Millions		12 Months Ended			36 Months Ended
	Dec. 16, 2014	Dec. 31, 2015 USD ($) entity $ / shares shares	Dec. 31, 2014 USD ($) shares	Dec. 31, 2013 USD ($) shares	Dec. 31, 2015 USD ($)	Nov. 11, 2014 USD ($)
Significant Accounting Policies [Line Items]
Ratio of shares of common stock to be distributed to shareholders	0.5
Revenues derived from percentage of completion accounting, percentage		27.70%	25.50%	25.40%
Costs and estimated earnings in excess of billings on uncompleted contracts		$ 50.9	$ 93.7		$ 50.9
Excess over average costs on long-term contracts		438.1	320.6		438.1
Accounts receivable - trade, allowance for doubtful accounts		$ 6.3	5.4		6.3
Number of reportable units \| entity		5
Percentage of discounted closing price for Employee Stock Purchase Plan		85.00%
Employee Stock Purchase Plan, rights granted		$ 1.0	1.3	$ 1.1
Stock compensation		0.0	0.0	0.0
Purchase of treasury stock		155.3	7.0	$ 3.3
Current assets		1,658.4	1,636.4		1,658.4
Long-term debt		2,034.1	2,147.3		2,034.1
ASU 2015-17 \| Adjustments for New Accounting Principle, Early Adoption \| Previously Reported
Significant Accounting Policies [Line Items]
Current assets			(19.2)
ASU 2015-17 \| Adjustments for New Accounting Principle, Early Adoption \| Restatement Adjustment
Significant Accounting Policies [Line Items]
Non-current liability		(19.2)			(19.2)
ASU 2015-03 \| Adjustments for New Accounting Principle, Early Adoption \| Term Loan Facility
Significant Accounting Policies [Line Items]
Long-term debt		$ (20.7)	(24.4)		$ (20.7)
Other assets			$ (24.4)
Share repurchase program
Significant Accounting Policies [Line Items]
Purchase of treasury stock, share \| shares		3,347,258
Purchase of treasury stock		$ 150.1
Share authorized under a share repurchase program						$ 400.0
Average price per share \| $ / shares		$ 44.84
Long Term Incentive Plans
Significant Accounting Policies [Line Items]
Purchase of treasury stock, share \| shares		117,349	99,911	41,376
Purchase of treasury stock		$ 5.2	$ 7.0	$ 3.3
Boeing \| Sales Revenue, Net
Significant Accounting Policies [Line Items]
Percentage of net sales		10.00%	12.00%	12.00%
No other individual customer [Member] \| Sales Revenue, Net
Significant Accounting Policies [Line Items]
Percentage of net sales					10.00%
Minimum
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life		1 year
Useful life (years)		3 years
Maximum
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life		50 years
Useful life (years)		34 years