Related Parties (Schedule Of Receivable From Employees And Related Parties) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Related Parties [Abstract]
Advances to Employees	$ 4,830	$ 1,994
Personal Expenses Paid on Behalf of Employees and Related Parties	49	240
Receivable from Affiliates	689
Reimbursable Expenses Due From Portfolio Companies of the Company's Private Equity Funds	636	485
Reimbursable Expenses Relating to the Private Equity Funds	1,589	746
Receivable from Employees and Related Parties	$ 7,793	$ 3,465