XML 101 R86.htm IDEA: XBRL DOCUMENT v3.19.2
Debt Securities Available for Sale - Debt securities available- for-sale - Additional Information (Details) - USD ($)
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Debt Securities, Available-for-sale      
Available-for-sale $ 0 $ 0  
Gross Unrealized Losses $ 58,990,000   $ 209,307,000