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Intangible Assets - Additional Information (Details) (USD $)
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3 Months Ended | |
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Mar. 31, 2015
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Mar. 31, 2014
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| Goodwill And Intangible Assets Disclosure [Abstract] | ||
| Impairment of intangible assets, indefinite-lived (excluding goodwill) | $ 0us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill | $ 0us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill |
| Amortization of intangible assets | $ 13,223,000us-gaap_AmortizationOfIntangibleAssets | $ 14,084,000us-gaap_AmortizationOfIntangibleAssets |
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- Definition
The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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