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Assets and Liabilities Measured at Fair Value on a Recurring Basis and Fair Value Hierarchy of the Valuation Techniques (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2013
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Dec. 31, 2012
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|---|---|---|
| Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | ||
| Assets-cost method investments | $ 3,382 | $ 7,682 |
| Liabilities: | ||
| Contingent consideration | 15,457 | 10,431 |
| Obligation for AWS call/put option | 10,104 | 9,021 |
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Significant Unobservable Inputs (Level 3)
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| Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | ||
| Assets-cost method investments | 3,382 | 7,682 |
| Liabilities: | ||
| Contingent consideration | 15,457 | 10,431 |
| Obligation for AWS call/put option | $ 10,104 | $ 9,021 |