SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014 entity	Dec. 31, 2013	Dec. 31, 2012
Significant Accounting Policies [Line Items]
Revenues derived from percentage of completion accounting, percentage	25.50%	25.40%	23.90%
Costs and estimated earnings in excess of billings on uncompleted contracts	$ 93.7	$ 81.9
Excess over average costs on long-term contracts	320.6	213.4
Accounts receivable - trade, allowance for doubtful accounts	5.4	10.4
Number of reportable units	5us-gaap_NumberOfReportableSegments
Percentage of discounted closing price for Employee Stock Purchase Plan	85.00%
Employee Stock Purchase Plan, rights granted	1.3	1.1	0.9
Stock compensation	0
Purchase of treasury stock, share	99,911us-gaap_TreasuryStockSharesAcquired	41,376us-gaap_TreasuryStockSharesAcquired	60,266us-gaap_TreasuryStockSharesAcquired
Purchase of treasury stock	$ 7.0	$ 3.3	$ 2.6
Boeing \| Sales Revenue, Net
Significant Accounting Policies [Line Items]
Percentage of net sales	12.00%	12.00%
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

Percentage Of Contract Revenue To Total Revenue

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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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-Publisher SEC

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

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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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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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