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Accrued And Other Liabilities (Schedule Of Accrued Liabilities) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Current Accrued Liabilities [Line Items]    
Compensation and benefits $ 14,700 $ 13,197
Vendor accruals 5,691 5,449
Accrued professional fees 582 493
Accrued taxes 4,684 1,834
Royalties payable 810 750
Accrued interest 74 73
Accrued other 588 762
Total 28,543 28,430
Other Current Liabilities [Member]
    
Current Accrued Liabilities [Line Items]    
Accrued earnouts related to acquisitions $ 1,414 $ 5,872