Estimated Fair Values of Assets Acquired and Liabilities Assumed for the Beech Acquisition (Detail) (Beech, USD $) In Thousands, unless otherwise specified	Apr. 12, 2011
Business Acquisition [Line Items]
Cash	$ 525
Current assets	846
Property, plant and equipment	57
Goodwill	11,241
Other intangibles	2,023
Current liabilities	(1,141)
Other non-current liabilities	(67)
Net assets acquired and liabilities assumed	13,484
as initially reported
Business Acquisition [Line Items]
Cash	525
Current assets	1,145
Property, plant and equipment	57
Goodwill	11,433
Other intangibles	2,317
Current liabilities	(1,100)
Other non-current liabilities	(893)
Net assets acquired and liabilities assumed	13,484
Measurement Period Adjustments
Business Acquisition [Line Items]
Current assets	(299)
Goodwill	(192)
Other intangibles	(294)
Current liabilities	(41)
Other non-current liabilities	$ 826