XML 81 R38.htm IDEA: XBRL DOCUMENT v2.4.1.9
NATURE OF BUSINESS AND OVERVIEW (Details) (USD $)
3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
NATURE OF BUSINESS AND OVERVIEW                      
Cash, cash equivalents and marketable securities $ 201,000,000us-gaap_InvestmentsAndCash               $ 201,000,000us-gaap_InvestmentsAndCash    
Net Loss (31,821,000)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (28,082,000)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (28,274,000)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (29,903,000)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (22,062,000)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (23,140,000)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (19,016,000)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (17,332,000)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (118,080,000)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (81,550,000)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (59,123,000)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Net cash used in operations                 $ (101,537,000)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations $ (67,669,000)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations $ (49,782,000)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations