XML 17 R1.htm IDEA: XBRL DOCUMENT v3.8.0.1
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Feb. 20, 2018
Jun. 30, 2017
Entity Information [Line Items]      
Entity Registrant Name WORKIVA INC    
Entity Central Index Key 0001445305    
Document Type 10-K    
Document Period End Date Dec. 31, 2017    
Document Fiscal Year Focus 2017    
Amendment Flag false    
Document Fiscal Period Focus FY    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Accelerated Filer    
Entity Public Float     $ 555.5
Class A Common Stock      
Entity Information [Line Items]      
Entity Common Stock, Shares Outstanding   32,364,250  
Class B Common Stock      
Entity Information [Line Items]      
Entity Common Stock, Shares Outstanding   10,203,371