v2.4.0.8
Acquisitions - Additional Information (Detail) (USD $)
6 Months Ended 0 Months Ended 1 Months Ended
Jun. 30, 2012
Mar. 09, 2012
Spire Semiconductor, LLC [Member]
Jul. 27, 2012
Phasein [Member]
Business Acquisition [Line Items]      
Cash paid for acquired entity $ 7,150,000 $ 7,200,000 $ 30,500,000
Purchase price allocation assigned to liabilities   1,200,000 2,000,000
Purchase price allocation assigned to goodwill     16,100,000
Purchase price allocation assigned to intangible assets     12,600,000
Purchase price allocation assigned to inventory     1,400,000
Purchase price allocation assigned to other assets     $ 2,400,000