XML 81 R61.htm IDEA: XBRL DOCUMENT v3.19.1
Employee Benefit Plans (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Retirement Benefits [Abstract]    
Matching contribution percentage 10.00%  
Matching contribution $ 400,000 $ 300,000
Awards payable under incentive-compensation plan 300,000 500,000
Deferred compensation plan, employer contributions $ 0 $ 0