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Financial Statement Details (Details 3) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Accrued Expenses
Royalties	$ 4,349	$ 5,861
Payroll and related expenses	7,788	8,706
Product warranty	2,329	1,525	2,279
Market development funds and price protection	2,147	1,750
Deferred rent	573	1,135
Professional fees	1,549	1,213
Deferred revenue	4,630	1,060
Other	4,435	3,794
Accrued expenses, Total	$ 27,800	$ 25,044

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