XML 71 R59.htm IDEA: XBRL DOCUMENT v3.20.2
Share-Based Compensation - Stock Option Activity under Company's Plan - Long Term Incentive Plan (Detail) - Long Term Incentive Plan Stock Option [Member] - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Outstanding at January 1, 2020, Number of Shares 31,750  
Granted, Number of Shares 25,500 0
Exercised, Number of Shares 0 0
Forfeited, Number of Shares (1,250)  
Outstanding (vested and expected to vest) at June 31,2020, Number of Shares 56,000  
Exercisable at June 30, 2020, Number of Shares 23,000  
Outstanding at January 1, 2020, Weighted Average Exercise Price per Share $ 58.77  
Granted, Weighted Average Exercise Price per Share 48.13  
Exercised, Weighted Average Exercise Price per Share 0.00  
Forfeited, Weighted Average Exercise Price per Share 48.00  
Outstanding (vested and expected to vest) at June 30, 2020, Weighted Average Exercise Price per Share 54.17  
Exercisable at June 30, 2020, Weighted Average Exercise Price per Share $ 58.68  
Outstanding (vested and expected to vest) at June 30, 2020, Weighted Average Remaining Contractual Term 7 years 4 months 24 days  
Exercisable at June 30, 2020, Weighted Average Remaining Contractual Term 4 years  
Outstanding (vested and expected to vest) at June 30, 2020, Aggregate Intrinsic Value $ 93  
Exercisable at June 30, 2020, Aggregate Intrinsic Value $ 45