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Leases - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2020
Jan. 01, 2019
Lessee Lease Description [Line Items]    
Operating lease right of use assets $ 6,302  
Operating lease liabilities $ 6,441  
Lease, practical expedients package true  
Operating lease, option to extend Certain of these leases offer the option to extend the lease term and the Company has included such extensions in its calculation of the lease liabilities to the extent the options are reasonably assured of being exercised.  
Operating lease, existence of to extend true  
Accounting Standards Update 2016-02 [Member]    
Lessee Lease Description [Line Items]    
Operating lease right of use assets   $ 7,000
Operating lease liabilities   $ 7,000