Other Current Accrued Liabilities (Details) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Accrued liabilities:
Customer prepayments	$ 11,512	$ 11,999
Litigation reserves	6,493	6,493
Deferred compensation & benefit plans	7,122	6,548
Accrued hold back & royalty consideration	2,127	2,132
Other accrued liabilities	3,790	3,376
Total other current accrued liabilities	$ 31,044	$ 30,548

Carrying amount of reserve for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs, which is expected to be paid within one year of the date of the statement of financial position.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Aggregate carrying amount, as of the balance sheet date, of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered and of liabilities not separately disclosed in the balance sheet. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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