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ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Payables and Accruals [Abstract]    
Accounts payable $ 9,571 $ 13,716
Accrued compensation and related liabilities 20,701 15,760
Accrued interest 0 324
Accrued taxes 4,793 8,135
Accrued legal 447 594
Accrued audit and tax 383 1,106
Accrued warranties 1,697 802
Accrued royalties 2,475 2,267
Other 5,467 7,651
Total $ 45,534 $ 50,355