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PREPAID EXPENSES AND OTHER CURRENT ASSETS (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
PREPAID EXPENSES AND OTHER CURRENT ASSETS    
Maintenance agreements, current portion $ 7,047 $ 4,600
Income taxes receivable 2,553 1,645
Prepaid expenses 4,212 3,672
Other current assets 2,210 974
Total $ 16,022 $ 10,891