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Leases - Additional Information (Detail) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Apr. 30, 2019	Jun. 30, 2019	Mar. 31, 2018	Sep. 30, 2020	Dec. 31, 2019	Mar. 31, 2019	Jan. 01, 2019	Apr. 30, 2018
Lessee Lease Description [Line Items]
Operating lease liabilities				$ 5,370,000
ROU assets				$ 4,094,000	$ 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
Line Of Credit Facility Increase Decrease For Period Net	$ 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 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]
Reduction in letters of credit						$ 575,000
ASC 840
Lessee Lease Description [Line Items]
Operating lease liabilities							$ 8,700,000
ROU assets							$ 7,400,000

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- Definition

Contribution as credit against lease payments.

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Lease commencement period.

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Lease Termination Date

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Payments for lease termination fee.

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- Definition

Amount of assets pledged to secure a debt instrument.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
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- Definition

Date which lease or group of leases is set to expire, in CCYY-MM-DD format.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Description of lessee's operating lease.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Amount of increase (decrease) of the credit facility.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Amount of lessee's right to use underlying asset under operating lease.

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Amount of cash outflow for the allowance granted to lessee and/or direct costs incurred by lessor used to prepare the leased premises for tenant's occupancy.

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