Quarterly report pursuant to Section 13 or 15(d)

Income (Loss) per Common Share - Additional Information (Detail)

v3.19.1
Income (Loss) per Common Share - Additional Information (Detail)
3 Months Ended
Feb. 28, 2019
shares
Employee Stock Incentive Plan [Member]  
Earnings Per Share Basic And Diluted [Line Items]  
Number of outstanding options excluded from computation of diluted earnings per share 51,636