Information on Business Segments (Details) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) Segment	Sep. 30, 2014 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| Segment			2
Net sales	$ 291,434	$ 317,659	$ 906,949	$ 951,832
Operating profit	43,747	50,885	138,291	131,391
Interest expense	2,637	2,435	7,944	8,558
Other (income) expense, net	(545)	741	(228)	1,768
Income from continuing operations before income taxes	41,655	47,709	130,575	121,065
Aerospace [Member]
Segment Reporting Information [Line Items]
Net sales	102,329	110,429	314,910	327,951
Industrial [Member]
Segment Reporting Information [Line Items]
Net sales	189,106	207,230	592,044	623,886
Operating profit	27,304	33,205	88,262	81,344
Intersegment sales [Member]
Segment Reporting Information [Line Items]
Net sales	$ (1)	$ 0	$ (5)	$ (5)

Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

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Amount of the cost of borrowed funds accounted for as interest expense.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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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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The net result for the period of deducting operating expenses from operating revenues.

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The net amount of other income and expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) net gains or losses on securities, (d) unusual costs, (e) gains or losses on foreign exchange transactions, and (f) miscellaneous other income and expense items.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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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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