XML 28 R35.htm IDEA: XBRL DOCUMENT v2.4.1.9
Contingently Issuable Common Stock (Details) (USD $)
Share data in Millions, except Per Share data, unless otherwise specified
3 Months Ended 0 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 10, 2010
Jun. 17, 2014
Jun. 16, 2014
Fair Value of Contingently Issuable Common Stock [Roll Forward]          
December 31, 2014 $ 14,600,000elgx_BusinessAcquisitionContingentlyIssuableCommonStockCurrent        
Fair Value Adjustment of Contingent Payment for the three months ended March 31, 2015 100,000us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1 (11,800,000)us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1      
March 31, 2015 14,700,000elgx_BusinessAcquisitionContingentlyIssuableCommonStockCurrent        
Nelix Milestones          
Business Acquisition [Line Items]          
Number of shares contingently issuable     10.2us-gaap_WeightedAverageNumberOfSharesContingentlyIssuable
/ us-gaap_ContingentConsiderationByTypeAxis
= elgx_NelixMilestonesMember
   
Estimated fair value of Contingent payment     28,200,000us-gaap_ContingentConsiderationClassifiedAsEquityFairValueDisclosure
/ us-gaap_ContingentConsiderationByTypeAxis
= elgx_NelixMilestonesMember
   
OUS Milestone          
Business Acquisition [Line Items]          
Purchase price common shares       2.7us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
/ us-gaap_ContingentConsiderationByTypeAxis
= elgx_OUSMilestoneMember
 
OUS Milestone | Common Stock          
Business Acquisition [Line Items]          
Business Combination, Contingent Consideration Arrangements, Change in Range of Outcomes, Contingent Consideration, Liability, Value, Low 10,000,000us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInTheRangeOfOutcomesContingentConsiderationLiabilityValueLow
/ us-gaap_ContingentConsiderationByTypeAxis
= elgx_OUSMilestoneMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonStockMember
       
Business Combination, Contingent Consideration Arrangements, Change in Range of Outcomes, Contingent Consideration, Liability, Shares, Low 1.3elgx_BusinessCombinationContingentConsiderationArrangementsChangeinRangeofOutcomesContingentConsiderationLiabilitySharesLow
/ us-gaap_ContingentConsiderationByTypeAxis
= elgx_OUSMilestoneMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonStockMember
       
Business Combination, Contingent Consideration Arrangements, Change in Range of Outcomes, Contingent Consideration, Liability, Value, High 24,000,000us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInTheRangeOfOutcomesContingentConsiderationLiabilityValueHigh
/ us-gaap_ContingentConsiderationByTypeAxis
= elgx_OUSMilestoneMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonStockMember
       
Business Combination, Contingent Consideration Arrangements, Change in Range of Outcomes, Contingent Consideration, Liability, Shares, High 6.9elgx_BusinessCombinationContingentConsiderationArrangementsChangeinRangeofOutcomesContingentConsiderationLiabilitySharesHigh
/ us-gaap_ContingentConsiderationByTypeAxis
= elgx_OUSMilestoneMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonStockMember
       
OUS Milestone | Common Stock | Minimum          
Business Acquisition [Line Items]          
Business Acquisition, Share Price         $ 3.50us-gaap_BusinessAcquisitionSharePrice
/ us-gaap_ContingentConsiderationByTypeAxis
= elgx_OUSMilestoneMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonStockMember
OUS Milestone | Common Stock | Maximum          
Business Acquisition [Line Items]          
Business Acquisition, Share Price         $ 7.50us-gaap_BusinessAcquisitionSharePrice
/ us-gaap_ContingentConsiderationByTypeAxis
= elgx_OUSMilestoneMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonStockMember
PMA Milestone          
Business Acquisition [Line Items]          
Common shares value     15,000,000us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned
/ us-gaap_ContingentConsiderationByTypeAxis
= elgx_PMAMilestoneMember
   
Number of shares contingently issuable 1.0us-gaap_WeightedAverageNumberOfSharesContingentlyIssuable
/ us-gaap_ContingentConsiderationByTypeAxis
= elgx_PMAMilestoneMember
       
Closing stock price $ 17.07elgx_BusinessAcquisitionContingentConsiderationClosingStockPricePerShare
/ us-gaap_ContingentConsiderationByTypeAxis
= elgx_PMAMilestoneMember
       
Contingent consideration, at fair value hypothetical value 17,100,000elgx_BusinessAcquisitionContingentConsiderationAtFairValueHypotheticalValue
/ us-gaap_ContingentConsiderationByTypeAxis
= elgx_PMAMilestoneMember
       
PMA Milestone | Maximum          
Business Acquisition [Line Items]          
Business Acquisition, Share Price     $ 4.50us-gaap_BusinessAcquisitionSharePrice
/ us-gaap_ContingentConsiderationByTypeAxis
= elgx_PMAMilestoneMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
   
Nellix          
Business Acquisition [Line Items]          
Purchase price common shares     3.2us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
/ us-gaap_BusinessAcquisitionAxis
= elgx_NellixMember
   
Common shares value     $ 19,400,000us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned
/ us-gaap_BusinessAcquisitionAxis
= elgx_NellixMember