XML 86 R72.htm IDEA: XBRL DOCUMENT v3.6.0.2
Consolidation - Assets Related to Consolidated Sponsored Investment Products, Unobservable Input Reconciliation (Detail) - Consolidated Sponsored Investment Products [Member] - Debt Securities [Member] - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance at beginning of period $ 1,397 $ 1,065
Purchases 174 913
Sales (1,472) (370)
Paydowns (5) (10)
Change in unrealized loss, net 348 (113)
Change in realized loss, net (355) (141)
Transfers from Level 2 (62) 151
Transfers to Level 2 0 (98)
Balance at end of period $ 25 $ 1,397