Segment Information (Current And Prior Years) (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Jan. 01, 2018 |
|
| Segment Reporting Information [Line Items] | ||||||||||||
| Revenues | $ 355,121 | $ 348,875 | $ 357,756 | $ 329,384 | $ 344,016 | $ 322,309 | $ 311,536 | $ 290,291 | $ 1,391,136 | $ 1,268,152 | $ 1,106,953 | |
| Income (loss) before income taxes | 12,988 | $ 12,657 | $ 13,884 | $ 7,636 | (146) | $ 4,657 | $ 1,187 | $ (4,518) | 47,165 | 1,180 | (12,286) | |
| EBITDA, as adjusted | 100,448 | 56,001 | 35,771 | |||||||||
| Identifiable assets | 740,904 | 632,025 | 740,904 | 632,025 | 546,003 | $ 687,828 | ||||||
| Depreciation and amortization | 24,039 | 28,835 | 28,334 | |||||||||
| Interest | 10,796 | 2,710 | 4,262 | |||||||||
| Capital expenditures | 14,502 | 9,896 | 7,132 | |||||||||
| Non-cash compensation | 5,882 | 5,539 | 5,311 | |||||||||
| Corporate | ||||||||||||
| Segment Reporting Information [Line Items] | ||||||||||||
| Revenues | 4,872 | 3,960 | 3,763 | |||||||||
| Income (loss) before income taxes | (29,030) | (19,686) | (17,609) | |||||||||
| EBITDA, as adjusted | (15,095) | (14,568) | (12,785) | |||||||||
| Identifiable assets | 67,678 | 98,041 | 67,678 | 98,041 | 29,884 | |||||||
| Depreciation and amortization | 19 | 34 | 64 | |||||||||
| Interest | 9,357 | 870 | 748 | |||||||||
| Capital expenditures | 120 | 4 | 0 | |||||||||
| Non-cash compensation | 3,844 | 3,692 | 3,519 | |||||||||
| Independent Advisory and Brokerage Services | Operating Segments | ||||||||||||
| Segment Reporting Information [Line Items] | ||||||||||||
| Revenues | 1,161,043 | 1,140,380 | 1,003,282 | |||||||||
| Income (loss) before income taxes | 62,748 | 19,858 | 15,071 | |||||||||
| EBITDA, as adjusted | 98,411 | 59,756 | 47,977 | |||||||||
| Identifiable assets | 515,720 | 443,670 | 515,720 | 443,670 | 423,288 | |||||||
| Depreciation and amortization | 22,403 | 21,455 | 20,406 | |||||||||
| Interest | 905 | 1,157 | 2,828 | |||||||||
| Capital expenditures | 13,787 | 8,923 | 6,784 | |||||||||
| Non-cash compensation | 1,220 | 1,035 | 1,010 | |||||||||
| Ladenburg | Operating Segments | ||||||||||||
| Segment Reporting Information [Line Items] | ||||||||||||
| Revenues | 78,094 | 66,680 | 49,425 | |||||||||
| Income (loss) before income taxes | 11,464 | 6,346 | (3,674) | |||||||||
| EBITDA, as adjusted | 12,966 | 8,115 | (1,676) | |||||||||
| Identifiable assets | 59,798 | 43,148 | 59,798 | 43,148 | 38,665 | |||||||
| Depreciation and amortization | 471 | 505 | 703 | |||||||||
| Interest | 62 | 0 | 4 | |||||||||
| Capital expenditures | 351 | 753 | 139 | |||||||||
| Non-cash compensation | 705 | 629 | 537 | |||||||||
| Insurance Brokerage | Operating Segments | ||||||||||||
| Segment Reporting Information [Line Items] | ||||||||||||
| Revenues | 147,127 | 57,132 | 50,483 | |||||||||
| Income (loss) before income taxes | 1,983 | (5,338) | (6,074) | |||||||||
| EBITDA, as adjusted | 4,166 | 2,698 | 2,255 | |||||||||
| Identifiable assets | $ 97,708 | $ 47,166 | 97,708 | 47,166 | 54,166 | |||||||
| Depreciation and amortization | 1,146 | 6,841 | 7,161 | |||||||||
| Interest | 472 | 683 | 682 | |||||||||
| Capital expenditures | 244 | 216 | 209 | |||||||||
| Non-cash compensation | $ 113 | $ 183 | $ 245 | |||||||||