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Pro Forma Results Under Acquisition (Detail) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014
Universal Robots |  |
Business Acquisition [Line Items] |  |
Revenue | $ 1,657,626 | $ 1,686,689
Net income | $ 199,784 | $ 61,078
Net income per common share, basic | $ 0.94 | $ 0.30
Net income per common share, diluted | $ 0.94 | $ 0.27
Avionics Interface Technologies, LLC |  |
Business Acquisition [Line Items] |  |
Revenue |  | $ 1,655,038
Net income |  | $ 82,169
Net income per common share, basic |  | $ 0.40
Net income per common share, diluted |  | $ 0.37

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