Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.20.1
Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2019
Mar. 12, 2020
Jun. 30, 2019
Document And Entity Information [Abstract]      
Entity Registrant Name LADENBURG THALMANN FINANCIAL SERVICES INC.    
Entity Central Index Key 0001029730    
Current Fiscal Year End Date --12-31    
Entity Filer Category Accelerated Filer    
Document Type 10-K    
Entity Emerging Growth Company false    
Entity Small Business false    
Entity Shell Company false    
Document Period End Date Dec. 31, 2019    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Common Stock, Shares Outstanding   100  
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers Yes    
Entity Current Reporting Status Yes    
Entity Public Float     $ 399,169,913