XML 80 R66.htm IDEA: XBRL DOCUMENT v3.8.0.1
Acquisition (Amortization Expense) (Details)
$ in Thousands
Dec. 31, 2017
USD ($)
Business Acquisition [Line Items]  
2018 $ 4,946
2019 4,168
2020 3,950
2021 3,890
2022 3,108
Thereafter 9,893
Finite-Lived Intangible Assets, Net 29,955
Scenario, Plan [Member] | Convergex Group [Member]  
Business Acquisition [Line Items]  
2018 1,258
2019 1,239
2020 1,216
2021 1,216
2022 1,007
Thereafter 2,931
Finite-Lived Intangible Assets, Net $ 8,867