XML 55 R42.htm IDEA: XBRL DOCUMENT v3.10.0.1
Composition of Certain Financial Statement Captions (Receivables) (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Items Included in Consolidated Statement of Financial Condition [Abstract]    
Trade receivables $ 85,113 $ 76,760
Fees earned, not billed 218,237 194,331
Other receivables 11,886 12,310
Receivables, Gross, Current 315,236 283,401
Less: Allowance for doubtful accounts (605) (695)
Receivables, net $ 314,631 $ 282,706