Fair Value Measurement Level 3 Input Roll Forward (Details) (Contingent Consideration [Member], USD $)
In Thousands, unless otherwise specified |
6 Months Ended |
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Jun. 30, 2013
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Contingent Consideration [Member]
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Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | |
Beginning balance | $ 34,800 |
Fair value adjustment recorded within selling, general and administrative expenses | 7,900 |
Ending Balance | $ 42,700 |