XML 35 R22.htm IDEA: XBRL DOCUMENT

Commission Management Payable	12 Months Ended
Commission Management Payable	Dec. 31, 2018
Commission Management Payable [Abstract]
Commission Management Payable	Commission Management Payable The Company receives a gross commission from various clearing brokers, which is then used to fund commission sharing and recapture arrangements, less the portion retained as income to the Company. Accrued commission sharing and commission recapture payable of $95.3 million and $70.5 million, as of December 31, 2018 and 2017, respectively, are classified as commission management payable in the accompanying consolidated statements of financial condition.