Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities:
Net income	$ 50,006	$ 77,061
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,863	2,012
Deferred compensation	4,317	2,982
Share-based compensation	17,748	9,670
Deferred income taxes	1,756	4,146
(Gains) losses on investments and derivatives	7,747	(727)
Changes in assets and liabilities:
Purchases by the Consolidated Investment Products and of other seed money investments	(101,361)	(9,879)
Proceeds from sales or maturities by the Consolidated Investment Products and from other seed money investments	66,712	430
Due to prime broker by the Consolidated Investment Products	271
Fees receivable and accrued fees, net of allowance for doubtful accounts	12,761	3,116
Income taxes receivable	(4,465)	(4,950)
Other assets	(1,658)	632
Accrued compensation and benefits	(14,086)	(4,557)
Accounts payable and accrued expenses	(2,137)	(1,998)
Accrued income taxes payable	(338)	(8,652)
Due under tax receivable agreement	(4,966)
Other liabilities	136	4,670
Net cash provided by operating activities	34,306	73,956
Cash flows from investing activities:
Purchase of Artio Global funds held for deferred compensation	(7,115)	(4,908)
Proceeds from redemptions of Artio Global funds held for deferred compensation	4,915	3,809
Purchase of fixed assets	(1,439)	(957)
Net cash used in investing activities	(3,639)	(2,056)
Cash flows from financing activities:
Repayments of borrowing under term credit facility	(13,500)
Proceeds from secondary offering		69,290
Repurchase and retirement of Class A common stock	(6,784)	(77,253)
Contributions from non-controlling interests in the Consolidated Investment Products	13,759
Distribution paid to GAM Holding AG		(40,100)
Distributions paid to non-controlling interests in Holdings	(1,690)	(12,382)
Cash dividends paid	(10,510)	(8,871)
Net cash used in financing activities	(18,725)	(69,316)
Effect of exchange rates on cash	(14)	13
Net increase in cash	11,928	2,597
Cash:
Beginning of period	80,043	60,842
End of period	91,971	63,439
Cash paid during period for:
Income taxes, net of refunds	44,459	59,091
Interest expense	1,632	1,487
Non-cash transactions:
Net benefit from step-up in tax basis		(24,176)
Exchange of New Class A Units for Shares of Class A common stock		(3,267)
Cancelation of Class B common stock		14
Conversion of Class C common stock to Class A common stock	$ (151)