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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax [Line Items]
Federal statutory tax rate of Canada	27.00%	27.00%	27.00%
Federal statutory tax rate of United States	21.00%	21.00%	21.00%
Effective tax rate	(31.40%)	165.60%	23.40%
Valuation allowance	$ 35	$ 31	$ 504
Net operating losses carry forwards	$ 58,780	48,285
Operating loss carry forwards, expiration year	2031
Uncertain tax benefits	$ 0	0
Income Tax Penalties and Interest	0	0
State and Local Jurisdiction [Member]
Income Tax [Line Items]
Net operating losses carry forwards	$ 21,108	12,572
Operating loss carry forwards, expiration year	2020
Foreign Tax Authority [Member]
Income Tax [Line Items]
Net operating losses carry forwards	$ 3,345	$ 1,770
Operating loss carry forwards, expiration year	2027

X

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Amount of unrecognized tax benefits.

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Income tax.

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