Investment In Unconsolidated Affiliates (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified |
1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jan. 31, 2010
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2012
LSV Employee Group II [Member]
|
Dec. 31, 2011
LSV Employee Group II [Member]
|
Jan. 31, 2013
LSV Employee Group II [Member]
|
Apr. 11, 2011
LSV Employee Group II [Member]
|
Jan. 31, 2013
LSV Employee Group III [Member]
|
Dec. 31, 2012
LSV Employee Group III [Member]
|
Oct. 02, 2012
LSV Employee Group III [Member]
|
Dec. 31, 2012
Maximum [Member]
|
Dec. 31, 2012
Financial Guarantee [Member]
LSV Employee Group [Member]
|
Jan. 24, 2006
Financial Guarantee [Member]
LSV Employee Group [Member]
|
Dec. 31, 2012
Financial Guarantee [Member]
LSV Employee Group II [Member]
|
Jan. 31, 2013
Financial Guarantee [Member]
LSV Employee Group II [Member]
|
Apr. 11, 2011
Financial Guarantee [Member]
LSV Employee Group II [Member]
|
Dec. 31, 2012
Financial Guarantee [Member]
LSV Employee Group III [Member]
|
Jan. 31, 2013
Financial Guarantee [Member]
LSV Employee Group III [Member]
|
Oct. 02, 2012
Financial Guarantee [Member]
LSV Employee Group III [Member]
|
Dec. 31, 2012
Financial Guarantee [Member]
L S V Asset Management [Member]
|
Jan. 31, 2013
Financial Guarantee [Member]
L S V Asset Management [Member]
|
Oct. 02, 2012
Financial Guarantee [Member]
L S V Asset Management [Member]
|
Dec. 31, 2012
L S V Asset Management [Member]
|
Dec. 31, 2011
L S V Asset Management [Member]
|
Dec. 31, 2010
L S V Asset Management [Member]
|
Dec. 31, 2012
L S V Asset Management [Member]
|
Dec. 31, 2012
Gao Fu [Member]
|
|
Investments in and Advances to Affiliates [Line Items] | ||||||||||||||||||||||||||||
Equity method investment, ownership percentage | 50.00% | 39.80% | 41.20% | |||||||||||||||||||||||||
Total investment in equity method investee | $ 68,716 | $ 8,682 | ||||||||||||||||||||||||||
Investment in equity method investee in excess of the underlying equity in net assets | 3,280 | |||||||||||||||||||||||||||
Goodwill | 3,062 | |||||||||||||||||||||||||||
Company's share in the earnings of equity method investee | 98,671 | 105,818 | 99,457 | 99,989 | 105,818 | 99,457 | (1,318) | |||||||||||||||||||||
Partnership distribution payments received from LSV | 21,242 | 92,227 | 109,273 | 93,302 | ||||||||||||||||||||||||
Guarantor Obligations, Maximum Exposure, Undiscounted | 82,800 | 3,655 | 45,000 | 45,000 | 22,563 | 24,930 | ||||||||||||||||||||||
Guarantor Obligations, Current Carrying Value | 0 | 0 | 0 | |||||||||||||||||||||||||
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned | 4,300 | 77,700 | ||||||||||||||||||||||||||
Guarantor Obligations, Term | 4 | 5 | 3 | |||||||||||||||||||||||||
Variable interest entity, principal payment | 1,031 | 458 | 2,367 | 0 | ||||||||||||||||||||||||
Loans Payable | $ 2,166 | $ 1,923 | $ 69,930 |