Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents	$ 557,990	$ 181,415
Cash and securities segregated under federal and other regulations	3,000
Securities borrowed	1,525,403	220,005
Securities purchased under agreements to resell	8,249
Receivables from broker dealers and clearing organizations	980,518	448,728
Trading assets, at fair value:
Financial instruments owned	2,203,248	1,683,999
Financial instruments owned and pledged	699,152	143,883
Property, equipment and capitalized software (net of accumulated depreciation of $118,671 and $113,184 as of September 30, 2017 and December 31, 2016, respectively)	144,686	29,660
Goodwill	859,598	715,379
Intangibles (net of accumulated amortization)	152,748	992
Deferred tax asset	224,804	193,859
Other assets (98,837 and $36,480, at fair value, as of September 30, 2017 and December 31, 2016, respectively)	379,949	74,470
Total assets	7,739,345	3,692,390
Liabilities
Short term borrowings	15,000	25,000
Securities loaned	582,915	222,203
Securities sold under agreements to repurchase	620,887
Payables to broker dealers and clearing organizations	839,067	695,978
Payables to customers	25,550
Trading liabilities, at fair value:
Financial instruments sold, not yet purchased	2,535,891	1,349,155
Tax receivable agreement obligations	232,552	231,404
Accounts payable and accrued expenses and other liabilities	287,327	69,281
Long-term borrowings	1,434,629	564,957
Total liabilities	6,573,818	3,157,978
Stockholders' Equity
Treasury stock, at cost, 461,392 and 453,066 shares at September 30, 2017 and December 31, 2016, respectively	(8,505)	(8,358)
Additional paid-in capital	900,586	155,536
Accumulated deficit	(51,304)	(1,254)
Accumulated other comprehensive income (loss)	2,596	(252)
Total stockholders' equity	843,375	145,673
Noncontrolling interest	322,152	388,739
Total equity	1,165,527	534,412
Total liabilities and equity	7,739,345	3,692,390
Class D
Stockholders' Equity
Common stock value	1	$ 1
Class A
Stockholders' Equity
Common stock value	$ 1