Segment Information (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
Jan. 01, 2018 |
Dec. 31, 2017 |
|
| Segment Reporting Information [Line Items] | ||||||
| Revenues | $ 348,875 | $ 322,309 | $ 1,036,015 | $ 924,136 | ||
| Income (loss) before income taxes | 12,657 | 4,657 | 34,177 | 1,326 | ||
| EBITDA, as adjusted | 25,309 | 16,662 | 71,312 | 37,309 | ||
| Identifiable assets | 800,591 | 552,615 | 800,591 | 552,615 | $ 687,828 | $ 632,025 |
| Depreciation and amortization | 5,845 | 7,104 | 17,416 | 21,830 | ||
| Interest | 3,206 | 601 | 7,226 | 1,599 | ||
| Capital expenditures | 3,898 | 2,552 | 10,503 | 7,258 | ||
| Non-cash compensation | 1,380 | 1,341 | 4,442 | 4,148 | ||
| Corporate | ||||||
| Segment Reporting Information [Line Items] | ||||||
| Revenues | 720 | 327 | 3,441 | 942 | ||
| Income (loss) before income taxes | (6,557) | (5,864) | (19,418) | (15,383) | ||
| EBITDA, as adjusted | (3,264) | (4,738) | (11,266) | (11,954) | ||
| Identifiable assets | 150,560 | 37,544 | 150,560 | 37,544 | ||
| Depreciation and amortization | 5 | 1 | 13 | 30 | ||
| Interest | 2,817 | 77 | 5,900 | 223 | ||
| Capital expenditures | (8) | (40) | 16 | 4 | ||
| Non-cash compensation | 887 | 916 | 2,864 | 2,777 | ||
| Independent Advisory and Brokerage Services | Operating Segments | ||||||
| Segment Reporting Information [Line Items] | ||||||
| Revenues | 300,015 | 286,170 | 875,015 | 832,866 | ||
| Income (loss) before income taxes | 18,538 | 8,411 | 45,926 | 17,409 | ||
| EBITDA, as adjusted | 27,224 | 16,956 | 72,456 | 42,413 | ||
| Identifiable assets | 509,270 | 424,155 | 509,270 | 424,155 | ||
| Depreciation and amortization | 5,457 | 5,340 | 16,332 | 16,140 | ||
| Interest | 311 | 352 | 861 | 865 | ||
| Capital expenditures | 3,780 | 2,208 | 10,037 | 6,460 | ||
| Non-cash compensation | 317 | 263 | 936 | 772 | ||
| Ladenburg | Operating Segments | ||||||
| Segment Reporting Information [Line Items] | ||||||
| Revenues | 15,180 | 19,454 | 55,614 | 49,330 | ||
| Income (loss) before income taxes | 821 | 3,099 | 7,113 | 4,408 | ||
| EBITDA, as adjusted | 1,110 | 3,479 | 8,029 | 5,811 | ||
| Identifiable assets | 49,841 | 44,759 | 49,841 | 44,759 | ||
| Depreciation and amortization | 122 | 105 | 345 | 392 | ||
| Interest | 2 | 0 | 50 | 0 | ||
| Capital expenditures | 95 | 351 | 351 | 627 | ||
| Non-cash compensation | 176 | 157 | 529 | 472 | ||
| Insurance Brokerage | Operating Segments | ||||||
| Segment Reporting Information [Line Items] | ||||||
| Revenues | 32,960 | 16,358 | 101,945 | 40,998 | ||
| Income (loss) before income taxes | (145) | (989) | 556 | (5,108) | ||
| EBITDA, as adjusted | 239 | 965 | 2,093 | 1,039 | ||
| Identifiable assets | 90,920 | 46,157 | 90,920 | 46,157 | ||
| Depreciation and amortization | 261 | 1,658 | 726 | 5,268 | ||
| Interest | 76 | 172 | 415 | 511 | ||
| Capital expenditures | 31 | 33 | 99 | 167 | ||
| Non-cash compensation | $ 0 | $ 5 | $ 113 | $ 127 | ||