Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity - Preferred Shares (Detail)

v3.21.1
Shareholders' Equity - Preferred Shares (Detail) - shares
Jun. 30, 2020
Dec. 31, 2019
Equity [Abstract]    
Preference shares, shares authorized 2,000,000 2,000,000
Preference shares, shares issued 0 0
Preference shares, shares outstanding 0 0