Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 78,942	$ 77,784
Securities owned, at fair value	6,419	8,873
Accounts receivable	28,136	25,834
Income taxes receivable	1,770	1,181
Prepaid expenses	4,037	4,441
Other current assets	164	163
Total current assets	119,468	118,276
Fixed assets, net	8,863	9,122
Note receivable, net (Note 8)	29,317	28,722
Indemnification receivable (Note 21)	31,593	34,876
Securities held-to-maturity	20,159	20,180
Deferred tax assets, net	3,998	7,042
Investments, carried at cost (Note 9)	28,080	28,080
Right of use assets – operating leases (Note 14)	19,446
Goodwill (Note 23)	85,856	85,856
Intangible assets (Note 23)	603,251	603,209
Other noncurrent assets	1,486	2,155
Total assets	951,517	937,518
Current liabilities:
Fund management and administration payable	26,921	22,508
Compensation and benefits payable	9,214	18,453
Deferred consideration – gold payments (Note 11)	11,857	11,765
Securities sold, but not yet purchased, at fair value	1,338	1,698
Operating lease liabilities (Note 14)	3,651
Accounts payable and other liabilities	9,772	8,377
Total current liabilities	62,753	62,801
Long-term debt (Note 12)	195,174	194,592
Deferred consideration – gold payments (Note 11)	145,290	149,775
Operating lease liabilities (Note 14)	20,704
Deferred rent payable		4,570
Other noncurrent liabilities (Note 21)	31,593	34,876
Total liabilities	455,514	446,614
Contingencies (Note 15)
Stockholders' equity
Preferred stock, par value $0.01; 2,000 shares authorized:
Common stock, par value $0.01; 250,000 shares authorized; issued and outstanding: 155,056 and 153,202 at March 31, 2019 and December 31, 2018, respectively	1,551	1,532
Additional paid-in capital	364,717	363,655
Accumulated other comprehensive income	758	467
Accumulated deficit	(3,592)	(7,319)
Total stockholders' equity	363,434	358,335
Total liabilities and stockholders' equity	951,517	937,518
Series A Preferred Stock [Member]
Current liabilities:
Preferred stock – Series A Non-Voting Convertible, par value $0.01; 14.750 shares authorized, issued and outstanding (Note 13)	$ 132,569	$ 132,569