v2.4.0.8
Fair Value Measurement (Details 1) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Secured debt fund [Member]
    
Investments in private funds [Abstract]    
Investments in limited liability companies and limited partnerships unfunded commitments $ 28,400 [1]  
Investments in limited liability companies and limited partnerships fair value 11,637 [1] 0 [1]
Long equity fund [Member]
    
Investments in private funds [Abstract]    
Investments in limited liability companies and limited partnerships unfunded commitments 0 [2]  
Investments in limited liability companies and limited partnerships fair value 5,657 [2] 0 [2]
Long/Short equity funds [Member]
    
Investments in private funds [Abstract]    
Investments in limited liability companies and limited partnerships unfunded commitments 0 [3]  
Investments in limited liability companies and limited partnerships fair value 8,602 [3] 17,115 [3]
Non-public equity funds [Member]
    
Investments in private funds [Abstract]    
Investments in limited liability companies and limited partnerships unfunded commitments 42,563 [4]  
Investments in limited liability companies and limited partnerships fair value 18,653 [4] 16,624 [4]
Investment in LPs/LLCs [Member]
    
Investments in private funds [Abstract]    
Investments in limited liability companies and limited partnerships fair value $ 44,549 $ 33,739
[1] The LP is structured to provide income and capital appreciation primarily through investments in senior secured debt. Redemptions are not allowed. Income and capital are to be periodically distributed at the discretion of the LP over an anticipated time frame that spans from 7 to 9 years.
[2] The LP holds long equities of public international companies. Redemptions are allowed at the end of any calendar month with a prior notice requirement of 15 days and are paid within 10 days of the end of the calendar month of the redemption request.
[3] The LP holds both long and short U.S. and North American equities, and targets absolute returns using a strategy designed to take advantage of event-driven market opportunities. Redemptions are allowed with a notice requirement of up to 45 days and are paid within 30 days of the redemption date, unless the redemption request is for 90% or more of the requestor’s capital balance. Redemptions at the 90% and above level will be paid at 90%, with the remainder paid after the LP’s annual audit.
[4] Comprised of interests in two unrelated LP funds, each structured to provide capital appreciation through diversified investments in private equity, which can include investments in buyout, venture capital, mezzanine debt, distressed debt and other private equity-oriented LPs. One LP allows redemption by special consent; the other does not permit redemption. Income and capital are to be periodically distributed at the discretion of the LP over an anticipated time frame that spans from 4 to 7 years.