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Leases - Additional Information (Detail) - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Apr. 30, 2019 | Sep. 30, 2019 | Mar. 31, 2018 | Dec. 31, 2020 | Dec. 31, 2019 | Jan. 01, 2019 | Apr. 30, 2018
Lessee Lease Description [Line Items] |  |  |  |  |  |  |
Operating lease liabilities |  |  |  | $ 4,963,000 |  |  |
ROU assets |  |  |  | $ 3,744,000 | $ 5,801,000 |  |
Lease expiration date |  |  |  | Mar. 31, 2025 |  |  |
Payments for lease termination fee |  |  |  | $ 671,000 |  |  |
Contribution as credit against lease payments |  |  |  | $ 180,000 |  |  |
Contribution from lessor as reimbursement towards leasehold improvements |  | $ 180,000 |  |  |  |  |
Payments towards leasehold improvements |  |  | $ 373,000 |  |  |  |
Letter of credit amount payable |  |  |  |  |  |  | $ 575,000
Reduction in letters of credit | $ 100,000 |  |  |  |  |  |
Lease termination date |  |  |  | Mar. 31, 2023 |  |  |
Mississauga, Canada [Member] |  |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |  |
Lease expiration date |  |  |  |  | Nov. 30, 2021 |  |
Lease commencement period |  |  |  |  | November 2016 |  |
Lease term (in months) |  |  |  | 60 months |  |  |
Wichita, Kansas |  |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |  |
Lease term (in months) |  |  |  | 66 months |  |  |
Lease agreement description |  |  |  | The Company commenced a new lease for an office space in Wichita, Kansas in June 2020 which continues for a period of 66 months with an option to extend the term for two additional periods of three years each. |  |  |
Letter of Credit | Certificates of Deposit | Other Noncurrent Assets |  |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |  |
Letters of credit outstanding amount |  |  |  |  | $ 575,000 |  |
ASC 842 |  |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |  |
Operating lease liabilities |  |  |  |  |  | $ 8,700,000 |
ROU assets |  |  |  |  |  | $ 7,400,000 |

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