XML 12 R1.htm IDEA: XBRL DOCUMENT v3.10.0.1
Document and Entity Information
6 Months Ended
Jun. 30, 2018
Document - Document and Entity Information [Abstract]  
Document Type 6-K
Amendment Flag false
Document Period End Date Jun. 30, 2018
Document Fiscal Year Focus 2018
Document Fiscal Period Focus Q2
Trading Symbol ASND
Entity Registrant Name Ascendis Pharma A/S
Entity Central Index Key 0001612042
Current Fiscal Year End Date --12-31