XML 57 R41.htm IDEA: XBRL DOCUMENT v3.19.3
Investments - Limited Partnerships and Limited Liability Company Investments (Details) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2019
Dec. 31, 2018
Investments    
Investments in limited partnership and limited liability companies $ 65,322 $ 53,432
Threshold notice period to withdraw funds 90 days  
Minimum holding period 1 year  
PIMCO Tactical Opportunities Fund    
Investments    
Investments in limited partnership and limited liability companies $ 35,200