Consolidated Statements of Financial Position (Unaudited) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
ASSETS
Cash	$ 91,971	$ 80,043
Investments, at fair value:
Artio Global funds held for deferred compensation	9,834	9,069
Investments owned by the Consolidated Investment Products, and other seed money investments	57,499	25,959
Fees receivable and accrued fees, net of allowance for doubtful accounts	41,612	54,373
Deferred taxes	197,107	198,863
Income taxes receivable	13,051	8,586
Other assets	13,234	11,554
Total assets	424,308	388,447
Debt:
Term loan	42,000	55,500
Due to prime broker by the Consolidated Investment Products	2,230	1,959
Accrued compensation and benefits	29,487	39,256
Accounts payable and accrued expenses	5,610	7,761
Investments sold, not yet purchased by the Consolidated Investment Products, at fair value	4,937	1,288
Accrued income taxes payable	4,411	4,749
Due under tax receivable agreement	162,092	167,058
Other liabilities	4,729	4,593
Total liabilities	255,496	282,164
Commitments and contingencies (Note 11)
Common stock:
Additional paid-in capital	624,958	613,065
Accumulated deficit	(471,321)	(509,629)
Total stockholders' equity	153,696	103,647
Total equity	168,812	106,283
Total liabilities and equity	424,308	388,447
Class A Common Stock
Common stock:
Common stock	58	42
Total equity	58	42
Class B Common Stock
Common stock:
Common stock	1	1
Total equity	1	1
Class C Common Stock
Common stock:
Common stock	0	168
Total equity	0	168
Holdings [Member]
Common stock:
Non-controlling interests	1,622	1,505
Consolidated Investment Products [Member]
Common stock:
Non-controlling interests	$ 13,494	$ 1,131