Annual report pursuant to Section 13 and 15(d)

Summary of Unrecognized Tax Benefits (Detail)

v3.20.1
Summary of Unrecognized Tax Benefits (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Income Tax Disclosure [Abstract]  
Balance at January 1, 2019 $ 509
Additions for tax positions related to the prior year 0
Lapse of statute of limitations 0
Balance at December 31, 2019 $ 509