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Ownership Interests in and Advances to Partner Companies and Funds Results of Operations for PixelOptics (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended 6 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Jun. 30, 2013
PixelOptics, Inc. [Member]
Jun. 30, 2012
PixelOptics, Inc. [Member]
Results of Operations:          
Revenue $ 273,754 $ 191,928 $ 117,057 $ 800 $ 569
Operating loss       (12,219) (16,172)
Net loss $ (52,489) $ (79,662) $ (38,468) $ (14,838) $ (16,923)