Senior Facility - Schedule of Interest Expenses Recognized Related to Senior Facility (Parenthetical) (Detail)	12 Months Ended
Dec. 31, 2020
Debt Instrument [Line Items]
Canadian prime rate	8.05%
Senior Secured Term Loan Facility [Member]
Debt Instrument [Line Items]
Canadian prime rate	8.05%

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.

No definition available.

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Period Type:	duration