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Subsequent Events - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
Jul. 29, 2020
Jul. 24, 2020
Jul. 02, 2020
Apr. 13, 2020
Jun. 30, 2020
Subsequent Event [Line Items]          
Dividends per common share       $ 0.40  
Dividends, date of record       May 15, 2020  
Dividends, date of payable       Jun. 19, 2020  
4% Promissory Note [Member]          
Subsequent Event [Line Items]          
Fixed interest rate         4.00%
Subsequent Event [Member]          
Subsequent Event [Line Items]          
Dividends per common share     $ 0.40    
Dividends, date of declared     Jul. 02, 2020    
Dividends, date of record     Aug. 21, 2020    
Dividends, date of payable     Sep. 18, 2020    
Subsequent Event [Member] | Tampa, Florida [Member] | 4% Promissory Note [Member]          
Subsequent Event [Line Items]          
Fixed interest rate 4.00%        
Early retirement of debt - principal and interest $ 7,062        
Debt instrument, early repayment, description On July 29, 2020, the Company made an early repayment of its 4% Promissory Note totaling $7,062 in principal plus accrued interest. The note was collateralized by the Company’s Tampa, Florida headquarters which was acquired by the FDOT in the eminent domain proceedings        
Subsequent Event [Member] | FDOT [Member] | Tampa, Florida [Member]          
Subsequent Event [Line Items]          
Compensation to acquire for highway expansion project   $ 47,500      
Net gain from involuntary conversion   $ 37,000