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Accumulated Other Comprehensive Loss - Components of Changes in Accumulated Other Comprehensive Loss (Detail)
$ in Thousands
6 Months Ended
Jun. 30, 2020
USD ($)
Accumulated Other Comprehensive Income Loss [Line Items]  
Beginning Balance $ 327,631
Ending Balance 345,045
Currency Translation Adjustments [Member]  
Accumulated Other Comprehensive Income Loss [Line Items]  
Beginning Balance (3,039)
Other comprehensive loss (227)
Ending Balance (3,266)
Accumulated Other Comprehensive Loss [Member]  
Accumulated Other Comprehensive Income Loss [Line Items]  
Beginning Balance (3,039)
Other comprehensive loss (227)
Ending Balance $ (3,266)