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Leases - Schedule of Lease Cost Recognized in Consolidated Statement of Operations and Other Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Lease Cost [Abstract]    
Operating lease cost $ 1,700 $ 1,703
Short-term operating lease cost [1] 46 118
Total operating lease cost $ 1,746 $ 1,821
Other information:    
Weighted-average remaining lease term - operating leases 2 years 9 months 18 days 5 years 2 months 12 days
Weighted-average discount rate - operating leases [2] 4.80% 5.00%
[1]

The Company elected the practical expedient permitted in ASC Topic 842. As such, its short-term operating lease in Wichita, Kansas is not recognized as a liability on the Company’s balance sheet as of December 31, 2019. The Company recognizes short-term operating lease costs on a straight-line basis.
[2] The discount rate used to compute the present value of total lease liabilities as of December 31, 2019 and 2020 and was based on the Company's estimated incremental borrowing rate of similar secured borrowings available to the Company as of the commencement date of lease or implementation date of ASC 842 on January 1, 2019.