Quarterly report pursuant to Section 13 or 15(d)

Assets and Liabilities, at Fair Value (Narrative) (Details)

v3.10.0.1
Assets and Liabilities, at Fair Value (Narrative) (Details)
$ in Thousands
3 Months Ended
Jun. 30, 2018
USD ($)
Sep. 30, 2018
USD ($)
investment
Goodwill [Line Items]    
Redemption rate, percentage   100.00%
Commemorative coins, held at lower of cost or market $ 99 $ 86
Goodwill 8,881 $ 8,881
Impairment of intangible assets 1,300  
Impairment loss 1,400  
Number of investments | investment   2
Equity and cost method investment 8,388 $ 8,636
Trade name    
Goodwill [Line Items]    
Indefinite-lived intangible assets, net of accumulated impairment $ 3,163 $ 3,163