Condensed Consolidated Statements of Financial Condition - USD ($)		Sep. 30, 2017		Dec. 31, 2016
Assets
Cash and cash equivalents		$ 117,824,000		$ 110,990,000
Cash collateral pledged		16,995,000		13,342,000
Segregated Cash		140,656,000		1,024,000
Securities owned, at fair value		659,772,000		700,876,000
Receivable on derivative contracts, at fair value		32,105,000		22,901,000
Securities Borrowed		371,367,000		0
Other investments		141,180,000		157,279,000
Deposits with clearing organizations, brokers and banks		84,161,000		8,939,000
Receivable from brokers, dealers and clearing organizations		247,136,000		78,898,000
Receivables from Customers		45,509,000		0
Fees receivable, net of allowance of $1,648 and $0, respectively		110,954,000		45,883,000
Due from related parties		37,407,000		39,629,000
Fixed assets, net of accumulated depreciation and amortization of $26,831 and $23,867, respectively		35,817,000		42,408,000
Goodwill		60,678,000		60,678,000
Intangible assets, net of accumulated amortization of $29,643 and $29,418, respectively		31,705,000		25,769,000
Deferred tax assets, net		158,617,000		165,656,000
Other assets		75,729,000		38,406,000
Consolidated Funds
Cash and cash equivalents		11,156,000		17,761,000
Securities owned, at fair value		117,630,000		79,237,000
Receivable on derivatives, Consolidated Funds		1,042,000		893,000
Other investments		401,348,000		401,465,000
Receivable from brokers, Consolidated Funds		8,334,000		5,978,000
Other assets		289,000		511,000
Total Assets		2,907,411,000		2,018,523,000
Liabilities
Securities sold, not yet purchased, at fair value		305,267,000		266,090,000
Payable for derivative contracts, at fair value		26,317,000		20,762,000
Securities Loaned		414,957,000		0
Payable to brokers, dealers and clearing organizations		156,103,000		210,309,000
Payables to Customers		202,727,000		0
Commission management payable		77,851,000		3,590,000
Compensation payable		102,508,000		98,084,000
Notes payable and other debt		101,267,000		77,030,000
Convertible debt	[1]	136,189,000		130,029,000
Fees payable		11,493,000		3,272,000
Due to related parties		567,000		573,000
Accounts payable, accrued expenses and other liabilities		103,036,000		47,525,000
Consolidated Funds
Securities sold, not yet purchased, at fair value, Consolidated Funds		0	[2]	883,000
Payable for derivative contracts, at fair value, Consolidated Funds		1,747,000		572,000
Payable to brokers, Consolidated Funds		1,411,000		3,700,000
Contributions received in advance		0		2,000,000
Capital withdrawals payable		580,000		1,408,000
Accounts payable, accrued expenses and other liabilities		214,000		841,000
Total Liabilities		1,642,234,000		866,668,000
Commitments and Contingencies
Redeemable non-controlling interests		421,661,000		379,205,000
Stockholders' equity
Additional paid-in capital		1,000,923,000		928,646,000
(Accumulated deficit) retained earnings		7,554,000		(2,442,000)
Accumulated other comprehensive income (loss)		(8,000)		(2,000)
Less: Class A common stock held in treasury, at cost, 10,593,191 and 9,810,802 shares as of June 30, 2017 and December 31, 2016, respectively.		(165,278,000)		(153,845,000)
Total Stockholders' Equity		843,516,000		772,650,000
Total Liabilities and Stockholders' Equity		2,907,411,000		2,018,523,000
Convertible Preferred Stock
Stockholders' equity
Preferred stock		1,000		1,000
Common Stock Class A
Stockholders' equity
Common stock		324,000		292,000
Less: Class A common stock held in treasury, at cost, 10,593,191 and 9,810,802 shares as of June 30, 2017 and December 31, 2016, respectively.		(165,278,000)		(153,845,000)
Common Stock Class B
Stockholders' equity
Common stock		$ 0		$ 0

[1] The carrying amount of the convertible debt includes an unamortized discount of $12.2 million and $17.8 million as of September 30, 2017 and December 31, 2016.

[2] As of December 31, 2016, maturities ranged from September 2019 to September 2023 and interest rates ranged from 4.38% to 9.25%.