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Intangible Assets, Net - Summary of Intangible Assets, Net (Detail) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Dec. 31, 2012
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Definite-lived intangible assets: |  |  |  |
Investment contracts | $ 158,747 | $ 157,882 |  |
Accumulated amortization | (148,453) | (145,665) |  |
Definite-lived intangible assets, net | 10,294 | 12,217 |  |
Indefinite-lived intangible assets | 32,416 | 32,416 |  |
Total intangible assets, net | $ 42,710 | $ 44,633 | $ 45,907 | $ 48,711

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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