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Summary of Significant Accounting Policies - Minimum Future Licensing Revenues (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Accounting Policies [Abstract]  
2014 $ 82,043
2015 54,631
2016 45,193
2017 36,220
2018 26,364
Thereafter 128,018
Fixed non-cancelable minimum licensing revenues $ 372,469