Accrued And Other Liabilities (Schedule Of Accrued Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current Accrued Liabilities [Line Items]
Compensation and benefits	$ 13,197	$ 13,582
Vendor accruals	5,449	3,357
Accrued professional fees	493	533
Accrued taxes	1,834	3,382
Royalties payable	750	550
Accrued interest	73	266
Accrued other	762	462
Total	28,430	24,789
Other Current Liabilities [Member]
Current Accrued Liabilities [Line Items]
Earnouts and deferred payments related to acquisitions	$ 5,872	$ 2,657