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Income Taxes - Movements in Deferred Tax Assets (Liabilities) (Details) - CAD ($) $ in Thousands | 12 Months Ended
--- | ---
Jun. 30, 2020 | Jun. 30, 2019
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | $ (90,970) | $ (55,409)
Discontinued operations | (957) | 264
Deferred tax assets (liabilities) assumed from acquisition and other |  | (78,470)
Recovered through (charged to) earnings | 82,931 | 23,909
Recovered through (charged to) other comprehensive income | 515 | 18,323
Recovered through (charged to) equity | 4,535 | 413
Deferred tax asset (liability) | (3,946) | (90,970)
Total deferred tax assets |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | 117,209 | 39,325
Discontinued operations | (957) | 684
Deferred tax assets (liabilities) assumed from acquisition and other |  | 23,187
Recovered through (charged to) earnings | 31,452 | 54,013
Recovered through (charged to) other comprehensive income | 106 | 0
Recovered through (charged to) equity | 2,231 | 0
Deferred tax asset (liability) | 150,041 | 117,209
Non-capital losses |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | 44,303 | 30,186
Discontinued operations | (1,358) | 739
Deferred tax assets (liabilities) assumed from acquisition and other |  | 10,552
Recovered through (charged to) earnings | 82,761 | 2,826
Recovered through (charged to) other comprehensive income | 81 | 0
Recovered through (charged to) equity | 0 | 0
Deferred tax asset (liability) | 125,787 | 44,303
Capital losses |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | 0 |
Discontinued operations | 0 |
Recovered through (charged to) earnings | 501 |
Recovered through (charged to) other comprehensive income | 0 |
Recovered through (charged to) equity | 0 |
Deferred tax asset (liability) | 501 | 0
Finance costs |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | 11,545 | 7,888
Discontinued operations | 0 | 0
Deferred tax assets (liabilities) assumed from acquisition and other |  | 4,710
Recovered through (charged to) earnings | (4,087) | (1,053)
Recovered through (charged to) other comprehensive income | 0 | 0
Recovered through (charged to) equity | 2,231 | 0
Deferred tax asset (liability) | 9,689 | 11,545
Investment tax credit |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | 728 | 593
Discontinued operations | 0 | 0
Deferred tax assets (liabilities) assumed from acquisition and other |  | 0
Recovered through (charged to) earnings | (159) | 135
Recovered through (charged to) other comprehensive income | 0 | 0
Recovered through (charged to) equity | 0 | 0
Deferred tax asset (liability) | 569 | 728
Property, plant and equipment |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | 13,701 | 0
Discontinued operations | 401 | 0
Deferred tax assets (liabilities) assumed from acquisition and other |  | 7,835
Recovered through (charged to) earnings | (14,102) | 5,866
Recovered through (charged to) other comprehensive income | 0 | 0
Recovered through (charged to) equity | 0 | 0
Deferred tax asset (liability) | 0 | 13,701
Derivatives |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | 37,462 | 0
Discontinued operations | 0 | 0
Deferred tax assets (liabilities) assumed from acquisition and other |  | 0
Recovered through (charged to) earnings | (37,042) | 37,462
Recovered through (charged to) other comprehensive income | 0 | 0
Recovered through (charged to) equity | 0 | 0
Deferred tax asset (liability) | 420 | 37,462
Leases |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | 0 |
Discontinued operations | 0 |
Recovered through (charged to) earnings | 13,050 |
Recovered through (charged to) other comprehensive income | 25 |
Recovered through (charged to) equity | 0 |
Deferred tax asset (liability) | 13,075 | 0
Others |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | 9,470 | 658
Discontinued operations | 0 | (55)
Deferred tax assets (liabilities) assumed from acquisition and other |  | 90
Recovered through (charged to) earnings | (9,470) | 8,777
Recovered through (charged to) other comprehensive income |  | 0
Recovered through (charged to) equity | 0 | 0
Deferred tax asset (liability) | 0 | 9,470
Total deferred tax liabilities |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | (208,179) | (94,734)
Discontinued operations | 0 | (420)
Deferred tax assets (liabilities) assumed from acquisition and other |  | (101,657)
Recovered through (charged to) earnings | 51,479 | (30,104)
Recovered through (charged to) other comprehensive income | 409 | 18,323
Recovered through (charged to) equity | 2,304 | 413
Deferred tax asset (liability) | (153,987) | (208,179)
Convertible debenture |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | (47,089) | (10,905)
Discontinued operations | 0 | 0
Deferred tax assets (liabilities) assumed from acquisition and other |  | 0
Recovered through (charged to) earnings | 11,599 | (36,597)
Recovered through (charged to) other comprehensive income | 0 | 0
Recovered through (charged to) equity | 1,703 | 413
Deferred tax asset (liability) | (33,787) | (47,089)
Marketable securities |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | (6,141) | (3,799)
Discontinued operations | 0 | 0
Deferred tax assets (liabilities) assumed from acquisition and other |  | 0
Recovered through (charged to) earnings | 4,916 | (20,145)
Recovered through (charged to) other comprehensive income | 624 | 17,803
Recovered through (charged to) equity | 601 | 0
Deferred tax asset (liability) | 0 | (6,141)
Investment in associates |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | (4,409) | (10,313)
Discontinued operations | 0 | 0
Deferred tax assets (liabilities) assumed from acquisition and other |  | 0
Recovered through (charged to) earnings | 4,409 | 5,384
Recovered through (charged to) other comprehensive income | 0 | 520
Recovered through (charged to) equity | 0 | 0
Deferred tax asset (liability) | 0 | (4,409)
Derivatives |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | 0 | (15,530)
Discontinued operations | 0 | 0
Deferred tax assets (liabilities) assumed from acquisition and other |  | 0
Recovered through (charged to) earnings | 0 | 15,530
Recovered through (charged to) other comprehensive income | 0 | 0
Recovered through (charged to) equity | 0 | 0
Deferred tax asset (liability) | 0 | 0
Intangible assets |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | (129,562) | (44,433)
Discontinued operations | 0 | 0
Deferred tax assets (liabilities) assumed from acquisition and other |  | (93,201)
Recovered through (charged to) earnings | 38,807 | 8,072
Recovered through (charged to) other comprehensive income | (197) | 0
Recovered through (charged to) equity | 0 | 0
Deferred tax asset (liability) | (90,952) | (129,562)
Property, plant and equipment |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | 0 | (1,738)
Discontinued operations | 0 | (420)
Deferred tax assets (liabilities) assumed from acquisition and other |  | 0
Recovered through (charged to) earnings | (7,100) | 2,158
Recovered through (charged to) other comprehensive income | (18) | 0
Recovered through (charged to) equity | 0 | 0
Deferred tax asset (liability) | (7,118) | 0
Inventory |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | (11,665) | (4,975)
Discontinued operations | 0 | 0
Deferred tax assets (liabilities) assumed from acquisition and other |  | (8,456)
Recovered through (charged to) earnings | (3,007) | 1,766
Recovered through (charged to) other comprehensive income | 0 | 0
Recovered through (charged to) equity | 0 | 0
Deferred tax asset (liability) | (14,672) | (11,665)
Biological assets |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | (9,313) | (3,041)
Discontinued operations | 0 | 0
Deferred tax assets (liabilities) assumed from acquisition and other |  | 0
Recovered through (charged to) earnings | 2,404 | (6,272)
Recovered through (charged to) other comprehensive income | 0 | 0
Recovered through (charged to) equity | 0 | 0
Deferred tax asset (liability) | (6,909) | (9,313)
Others |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |
Deferred tax asset (liability) | 0 |
Discontinued operations | 0 |
Recovered through (charged to) earnings | (549) |
Recovered through (charged to) other comprehensive income | 0 |
Recovered through (charged to) equity | 0 |
Deferred tax asset (liability) | $ (549) | $ 0

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