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Income taxes (Tables)
 12 Months Ended
Mar. 31, 2023
Disclosure Of Income Tax [Abstract]  
Income tax expense (recovery)
Income tax expense (recovery) includes the following components:
20232022
$
$
Current
Related to current year2,880 1,214 
Related to prior years(411)(111)
2,469 1,103 
Deferred
Related to current year(6,338)(27,831)
Related to prior years(350)(193)
(6,688)(28,024)
Total income tax recovery(4,219)(26,921)
The income tax expense (recovery) reported, which includes foreign taxes, differs from the amount of the income tax expense (recovery) computed by applying Canadian statutory rates as follows:
20232022
$$
Loss before income taxes(1,074,228)(315,354)
Statutory tax rate26.5 %26.5 %
Income tax recovery at the statutory tax rate(284,671)(83,589)
Impact of rate differential of foreign jurisdiction9,944 7,078 
Non-deductible share-based compensation and related costs33,771 20,208 
Acquisition-related compensation and transaction-related costs1,267 1,480 
Other non-deductible expenses (credits) and non-taxable amounts728 (192)
Adjustment related to prior years(761)(304)
Goodwill impairment198,409 — 
Changes in unrecognized benefits of deferred tax assets38,673 27,972 
Impact of foreign exchange and other(1,579)426 
Total income tax recovery(4,219)(26,921)
Deferred tax assets/liabilities Significant components of the Company’s deferred tax assets and liabilities are as follows:
20232022
Deferred tax assets$$
Property and equipment3,179 2,402 
Non-capital losses carried forward49,467 78,292 
Lease liabilities6,045 6,354 
Deferred revenue530 1,217 
Interest expenses carried forward3,170 5,852 
Other17,760 6,338 
Total deferred tax assets80,151 100,455 
Deferred tax liabilities
Property and equipment(562)(299)
Intangible assets(67,972)(97,647)
Lease right-of-use assets(5,028)(5,140)
Other(6,288)(4,048)
Total deferred tax liabilities(79,850)(107,134)
Net deferred tax assets (liabilities)301 (6,679)
As presented on the consolidated balance sheets:
Deferred tax assets301 154 
Deferred tax liabilities— (6,833)
Net deferred tax assets (liabilities)301 (6,679)
2023
Balance as at March 31, 2022Charged
(credited) to
consolidated
statement of
loss		Business
acquisitions
and other		Balance as at March 31, 2023
$$$$
Deferred tax assets (liabilities) continuity
Property and equipment2,103 514 — 2,617 
Intangible assets(97,647)29,675 — (67,972)
Lease liabilities6,354 (309)— 6,045 
Lease right-of-use assets(5,140)112 — (5,028)
Non-capital losses carried forward78,292 (28,825)— 49,467 
Deferred revenue1,217 (687)— 530 
Interest expenses carried forward5,852 (2,682)— 3,170 
Other2,290 8,890 292 11,472 
Net deferred tax assets (liabilities)(6,679)6,688 292 301 
2022
Balance as at March 31, 2021Charged
(credited) to
consolidated
statement of
loss		Business
acquisitions
and other		Balance as at March 31, 2022
$$$$
Deferred tax assets (liabilities) continuity
Property and equipment2,061 75 (33)2,103 
Intangible assets(50,476)22,042 (69,213)(97,647)
Lease liabilities6,073 5 276 6,354 
Lease right-of-use assets(5,000)86 (226)(5,140)
Non-capital losses carried forward41,308 3,439 33,545 78,292 
Deferred revenue1,011 206 — 1,217 
Interest expenses carried forward5,188 664 — 5,852 
Other(1,351)1,507 2,134 2,290 
Net deferred tax assets (liabilities)(1,186)28,024 (33,517)(6,679)
Non-capital loss carryforwards
The Company has accumulated unrecognized deductible temporary differences, unused tax losses and unused tax credits as follows:
20232022
$$
Deductible temporary differences63,695 60,237 
Non-capital losses587,407 394,067 
Research and development expenditures21,760 15,456 
672,862 469,760