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Results of Shannon Included on Consolidated Statement of Income (Detail) - Shannon Systems $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)
Business Acquisition Information [Line Items]
Net sales	$ 9,049
Net income	$ 421

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- Definition

Business Acquisition Information [Line Items]

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- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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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)(1)
-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

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- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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