Quarterly report pursuant to Section 13 or 15(d)

Segment Information - Segment Information (Details)

v3.10.0.1
Segment Information - Segment Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Dec. 31, 2017
Segment Reporting Information [Line Items]          
Revenues $ 357,756 $ 311,536 $ 687,140 $ 601,827  
Income (loss) before income taxes 13,884 1,187 21,520 (3,331)  
EBITDA, as adjusted 25,839 13,157 46,003 20,647  
Identifiable assets 747,890 538,288 747,890 538,288 $ 632,025
Depreciation and amortization 5,762 7,294 11,571 14,726  
Interest 2,154 521 4,020 998  
Capital expenditures 4,365 2,313 6,605 4,706  
Non-cash compensation 1,568 1,378 3,062 2,807  
Corporate          
Segment Reporting Information [Line Items]          
Revenues 2,240 331 2,721 615  
Income (loss) before income taxes (5,635) (4,442) (12,861) (9,519)  
EBITDA, as adjusted (3,063) (3,301) (8,002) (7,216)  
Identifiable assets 107,911 27,201 107,911 27,201  
Depreciation and amortization 5 14 8 29  
Interest 1,707 73 3,083 146  
Capital expenditures 24 5 24 44  
Non-cash compensation 1,026 920 1,977 1,861  
Independent Advisory and Brokerage Services | Operating Segments          
Segment Reporting Information [Line Items]          
Revenues 299,471 280,855 575,000 546,696  
Income (loss) before income taxes 16,708 5,404 27,388 8,998  
EBITDA, as adjusted 25,221 13,722 45,232 25,457  
Identifiable assets 496,331 421,277 496,331 421,277  
Depreciation and amortization 5,423 5,350 10,875 10,800  
Interest 263 277 550 513  
Capital expenditures 4,160 2,064 6,257 4,252  
Non-cash compensation 309 241 619 509  
Ladenburg | Operating Segments          
Segment Reporting Information [Line Items]          
Revenues 18,120 18,011 40,434 29,876  
Income (loss) before income taxes 1,979 1,829 6,292 1,309  
EBITDA, as adjusted 2,268 2,219 6,919 2,332  
Identifiable assets 56,592 43,733 56,592 43,733  
Depreciation and amortization 111 124 223 287  
Interest 13 0 48 0  
Capital expenditures 166 143 256 276  
Non-cash compensation 177 157 353 315  
Insurance Brokerage | Operating Segments          
Segment Reporting Information [Line Items]          
Revenues 37,925 12,339 68,985 24,640  
Income (loss) before income taxes 832 (1,604) 701 (4,119)  
EBITDA, as adjusted 1,413 517 1,854 74  
Identifiable assets 87,056 46,077 87,056 46,077  
Depreciation and amortization 223 1,806 465 3,610  
Interest 171 171 339 339  
Capital expenditures 15 101 68 134  
Non-cash compensation $ 56 $ 60 $ 113 $ 122