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Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)
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12 Months Ended | ||
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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| Finite-Lived Intangible Assets [Line Items] | |||
| Amortization of finite-lived intangible assets | $ 18,300,000 | $ 16,200,000 | $ 9,400,000 |
| Payments to acquire domain names and other intangible assets | 3,375,000 | 1,850,000 | |
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Domain Names and Other Intangibles
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| Finite-Lived Intangible Assets [Line Items] | |||
| Payments to acquire domain names and other intangible assets | $ 400,000 | $ 1,900,000 | |
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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
The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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