Pro Forma Results Under Acquisition (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Avionics Interface Technologies, LLC
Business Acquisition, Pro Forma Information [Line Items]
Revenues	$ 1,655,038	$ 1,434,699
Net income	82,169	164,087
Net income per common share, basic	$ 0.40	$ 0.86
Net income per common share, diluted	$ 0.37	$ 0.70
ZTEC Instruments, Inc.
Business Acquisition, Pro Forma Information [Line Items]
Revenues		1,431,270	1,660,758
Net income		$ 163,394	$ 215,654
Net income per common share, basic		$ 0.86	$ 1.15
Net income per common share, diluted		$ 0.69	$ 0.94

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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