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SHAREHOLDER'S EQUITY (Tables)
3 Months Ended
Mar. 31, 2018
Stockholders Equity Note Abstract  
Schedule of dividends payable on unvested restricted stock units
Dividend Equivalent Liabilities
Balance SheetMarch 31,December 31,
Location20182017
(amounts in thousands)
Short-term Other current liabilities$604$830
Long-termOther long-term liabilities1,2151,331
Total$1,819$2,161
ESPP Shares Purchased and Non-Cash Comp Expense
Three Months Ended
March 31,
20182017
(amounts in thousands)
Number of shares purchased3915
Non-cash compensation expense recognized$57$32