Annual report pursuant to Section 13 and 15(d)

Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail)

v3.19.1
Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]  
Beginning balance $ (5,395)
Reductions based on tax positions taken during a prior period 190
Additions based on tax positions taken during the current period (523)
Ending balance $ (5,728)