Organization and Summary of Significant Accounting Policies - Adjustments to Opening Balance Sheet (Detail) $ in Thousands	Dec. 31, 2019 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment to retained earnings	$ 640
Impact of Adoption of Topic 326 on opening balance sheet
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment to retained earnings	600
Cumulative effect adjustment, income taxes	$ 200