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Summary of Significant Accounting Policies - Minimum Future Licensing Revenues (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013
Accounting Policies [Abstract]
Remainder of 2013	$ 22,694
2014	74,834
2015	50,236
2016	40,203
2017	31,486
Thereafter	144,048
Fixed non-cancelable minimum licensing revenues	$ 363,501

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- Definition

Minimum future licensing revenues, total.

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- Definition

Minimum future licensing revenues, in first full year.

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- Definition

Minimum future licensing revenues, in fourth full year.

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- Definition

Minimum future licensing revenues, in second full year.

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- Definition

Minimum future licensing revenues, in third full year.

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No definition available.

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- Definition

Minimum future licensing revenues, remainder of current year.

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- Definition

Minimum future licensing revenues, thereafter.

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No definition available.

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