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Composition of Certain Financial Statement Captions (Accrued Liabilities) (Details) - USD ($) $ in Thousands | Sep. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Items Included in Consolidated Statement of Financial Condition [Abstract] |  |
Accrued employee compensation | $ 56,318 | $ 73,269
Accrued employee benefits and other personnel | 5,603 | 6,482
Accrued consulting, outsourcing and professional fees | 18,203 | 18,915
Accrued sub-advisory, distribution and other asset management fees | 32,385 | 31,913
Accrued brokerage fees | 7,959 | 5,838
Accrued dividend payable | 0 | 40,178
Accrued income taxes | 8,908 | 3,272
Other accrued liabilities | 23,904 | 27,562
Total accrued liabilities | $ 153,280 | $ 207,429

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