v2.4.0.6
Composition Of Certain Financial Statement Captions (Receivables) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Composition Of Certain Financial Statement Captions [Abstract]    
Trade receivables $ 43,162 $ 37,822
Fees earned, not billed 110,853 92,916
Other receivables 15,718 12,295
Gross receivables 169,733 143,033
Less: Allowance for doubtful accounts (820) (924)
Receivables, net $ 168,913 $ 142,109