Quarterly report pursuant to Section 13 or 15(d)

Revenue from Contracts with Customers - Impact on Statement of Operations (Details)

v3.8.0.1
Revenue from Contracts with Customers - Impact on Statement of Operations (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]    
Commissions $ 163,286 $ 130,050
Advisory fees 114,383 127,003
Investment banking 16,490 6,489
Principal transactions 167 320
Interest and dividends 787 635
Service fees 24,902 18,556
Other income 9,369 7,238
Total revenues 329,384 290,291
Commissions and fees 231,311 218,734
Compensation and benefits 47,249 39,125
Non-cash compensation 1,494 1,429
Brokerage, communication and clearance fees 5,319 4,565
Rent and occupancy, net of sublease revenue 2,493 2,392
Professional services 5,018 4,123
Interest 1,866 477
Depreciation and amortization 5,809 7,432
Acquisition-related expenses 913 176
Amortization of retention and forgivable loans 76 1,591
Amortization of contract acquisition costs 2,210 0
Other 17,929 14,917
Total expenses 321,687 294,961
Income (loss) before item shown below 7,697 (4,670)
Change in fair value of contingent consideration (61) 152
Income (loss) before income taxes 7,636 (4,518)
Income tax expense (benefit) 2,172 (839)
Net income (loss) 5,464 (3,679)
Net income (loss) attributable to noncontrolling interest 1 (5)
Net income (loss) attributable to the Company 5,463 (3,674)
Dividends declared on preferred stock (8,508) (7,924)
Net loss available to common shareholders $ (3,045) $ (11,598)
Net loss per common share available to common shareholders (basic) (in USD per share) $ (0.02) $ (0.06)
Net loss per common share available to common shareholders (diluted) (in USD per share) $ (0.02) $ (0.06)
Basic (in shares) 195,898,794 192,270,615
Diluted (in shares) 195,898,794 192,270,615
Amounts without the adoption of ASC 606    
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]    
Commissions $ 146,038  
Advisory fees 163,927  
Investment banking 15,146  
Principal transactions 193  
Interest and dividends 781  
Service fees 24,902  
Other income 9,463  
Total revenues 360,450  
Commissions and fees 263,822  
Compensation and benefits 47,486  
Non-cash compensation 1,494  
Brokerage, communication and clearance fees 5,071  
Rent and occupancy, net of sublease revenue 2,493  
Professional services 4,636  
Interest 1,866  
Depreciation and amortization 7,123  
Acquisition-related expenses 913  
Amortization of retention and forgivable loans 3,156  
Amortization of contract acquisition costs 0  
Other 18,071  
Total expenses 356,131  
Income (loss) before item shown below 4,319  
Change in fair value of contingent consideration (61)  
Income (loss) before income taxes 4,258  
Income tax expense (benefit) 521  
Net income (loss) 3,737  
Net income (loss) attributable to noncontrolling interest 1  
Net income (loss) attributable to the Company 3,736  
Dividends declared on preferred stock (8,508)  
Net loss available to common shareholders $ (4,772)  
Net loss per common share available to common shareholders (basic) (in USD per share) $ (0.02)  
Net loss per common share available to common shareholders (diluted) (in USD per share) $ (0.02)  
Basic (in shares) 195,898,794  
Diluted (in shares) 195,898,794  
Effects of Change Higher/(Lower) | Accounting Standards Update 2014-09    
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]    
Commissions $ 17,248  
Advisory fees (49,544)  
Investment banking 1,344  
Principal transactions (26)  
Interest and dividends 6  
Service fees 0  
Other income (94)  
Total revenues (31,066)  
Commissions and fees (32,511)  
Compensation and benefits (237)  
Non-cash compensation 0  
Brokerage, communication and clearance fees 248  
Rent and occupancy, net of sublease revenue 0  
Professional services 382  
Interest 0  
Depreciation and amortization (1,314)  
Acquisition-related expenses 0  
Amortization of retention and forgivable loans (3,080)  
Amortization of contract acquisition costs 2,210  
Other (142)  
Total expenses (34,444)  
Income (loss) before item shown below 3,378  
Change in fair value of contingent consideration 0  
Income (loss) before income taxes 3,378  
Income tax expense (benefit) 1,651  
Net income (loss) 1,727  
Net income (loss) attributable to noncontrolling interest 0  
Net income (loss) attributable to the Company 1,727  
Dividends declared on preferred stock 0  
Net loss available to common shareholders $ 1,727  
Net loss per common share available to common shareholders (basic) (in USD per share) $ 0.00  
Net loss per common share available to common shareholders (diluted) (in USD per share) $ 0.00  
Basic (in shares) 0  
Diluted (in shares) 0