XML 111 R96.htm IDEA: XBRL DOCUMENT v3.10.0.1
Fair Value Measurements - Unobservable Inputs Reconciliation (Details) - Municipal securities - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning Balance, January 1 $ 1,108 $ 1,139
Total losses included in other comprehensive income (49) (31)
Ending Balance, December 31 $ 1,059 $ 1,108