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Summary of Significant Accounting Policies - Minimum Future Licensing Revenues (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014
Accounting Policies [Abstract]
Remainder of 2014	$ 61,418
2015	57,394
2016	47,581
2017	38,096
2018	28,080
Thereafter	133,227
Fixed non-cancelable minimum licensing revenues	$ 365,796

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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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- Definition

Minimum future licensing revenues, remainder of current year.

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- Definition

Minimum future licensing revenues, thereafter.

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