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Composition of Certain Financial Statement Captions (Accrued Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Items Included in Consolidated Statement of Financial Condition [Abstract]
Accrued employee compensation	$ 82,946	$ 107,933
Accrued employee benefits and other personnel	7,142	13,951
Accrued voluntary separation program	58,424	0
Accrued consulting, outsourcing and professional fees	41,919	36,411
Accrued sub-advisory, distribution and other asset management fees	57,988	58,661
Accrued dividend payable	0	55,452
Other accrued liabilities	46,568	51,974
Total accrued liabilities	$ 294,987	$ 324,382

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Carrying value as of the balance sheet date of obligations, excluding pension and other postretirement benefits, incurred through that date and payable for perquisites provided to employees pertaining to services received from them. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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