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FORM 40-F
EX-99.1 - ANNUAL REPORT FOR THE YEAR ENDED DECEMBER 31, 2021
EX-99.2 - CONSENT OF PRICEWATERHOUSECOOPERS LLP
EX-99.3 - CERTIFICATION OF CEO SECT 302
EX-99.4 - CERTIFICATION OF CFO SECT 302
EX-99.5 - CERTIFICATION OF CEO SECT 906
EX-99.6 - CERTIFICATION OF CFO SECT 906
EX-99.8 - AUDIT COMMITEE CHARTER
Operating Expenses - Additional Information (Detail)
$ in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
Operating Expenses 1 [abstract]
Change program costs
$ 183