Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses (Details)

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Accrued Expenses (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Components of accrued expenses    
Accrued investment manager fees $ 13,800 $ 12,937
Accrued compensation and related taxes 3,814 5,726
Accrued professional services 579 408
Other accrued expenses 2,268 1,130
Total accrued expenses $ 20,461 $ 20,201