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Stock-Based Compensation (Detail) - (Table 1) - shares
12 Months Ended
Dec. 31, 2019
May 24, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Common stock authorized   11,000,000
Stock-based awards, including restricted stock and stock options granted, net of expired or cancelled (483,185)  
Common stock available for grant of stock-based awards as of June 30, 2012 10,516,815