XML 132 R100.htm IDEA: XBRL DOCUMENT v3.20.1
Leases - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Jan. 01, 2019
Lessee, Lease, Description [Line Items]    
Operating lease right of use assets $ 6,620  
Operating lease liabilities $ 6,742  
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