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Stock-Based Compensation and Employee Benefit Plans - Summary of the Activity under the Picor Stock Option Plans (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Options Outstanding, Exercised (2,430)
Picor [Member]
  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Options Outstanding, Beginning balance 10,215,367
Options Outstanding, Granted 170,000
Options Outstanding, Forfeited and expired (380,000)
Options Outstanding, Exercised (601,000)
Options Outstanding, Ending balance 9,404,367
Options Outstanding, Exercisable 5,869,044
Options Outstanding, Vested or expected to vest 9,275,632
Weighted Average Exercise Price, Beginning balance $ 0.65
Weighted Average Exercise Price, Granted $ 0.64
Weighted Average Exercise Price, Forfeited and expired $ 0.25
Weighted Average Exercise Price, Exercised $ 0.75
Weighted Average Exercise Price, Ending balance $ 0.66
Weighted Average Exercise Price, Exercisable $ 0.69
Weighted Average Exercise Price, Vested or expected to vest $ 0.66
Weighted-Average Remaining Contractual Life in Years, Outstanding 6 years 2 months 5 days
Weighted-Average Remaining Contractual Life in Years, Exercisable 5 years 4 months 21 days
Weighted-Average Remaining Contractual Life in Years, Vested or expected to vest 6 years 15 days
Aggregate Intrinsic Value, Outstanding $ 351
Aggregate Intrinsic Value, Exercisable 204
Aggregate Intrinsic Value, Vested or expected to vest $ 347