Quarterly report pursuant to Section 13 or 15(d)

Summary of Potential Number of Shares that Could Vest Under Restricted Stock Unit Awards (Detail)

v3.20.1
Summary of Potential Number of Shares that Could Vest Under Restricted Stock Unit Awards (Detail)
$ in Thousands
3 Months Ended
Mar. 31, 2020
USD ($)
shares
Disclosure Of Restricted Stock Unit [Abstract]  
Number of shares vesting at IRR of at least 6% | shares 190,707
Number of shares vesting at IRR of at least 8% | shares 286,060
Number of shares vesting at IRR of at least 14% | shares 436,681
Value at grant at IRR of at least 6% | $ $ 6,125
Value at grant at IRR of at least 8% | $ 9,188
Value at grant at IRR of at least 14% | $ $ 14,026