Estimated Fair Values of Assets Acquired and Liabilities Assumed for the Danfotech Acquisition (Detail) (Danfotech, USD $) In Thousands	Jul. 05, 2011
Danfotech
Business Acquisition [Line Items]
Cash	$ 165
Current assets	1,073
Property, plant and equipment	102
Goodwill	3,423
Other intangibles	1,864
Other assets	4
Current liabilities	(309)
Other non-current liabilities	(46)
Net assets acquired and liabilities assumed	$ 6,276

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