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SHARE CAPITAL (Details) - USD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
Aug. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018
SHARE CAPITAL |  |  |
Balance |  | 579,115,000 | 578,636,000
Common shares, beginning of period |  | $ 3,035.2 | $ 3,036.5
Issuance of common shares on equity offering |  | $ 109.3 | $ 0.3
Issuance of common shares | 93,750,000 | 93,750,000 |
Issue of common shares |  | $ 106.7 |
Issuance of common shares under First Nations agreements |  | 3,077,000 | 113,000
Issuance of shares under First Nations agreements and land purchases |  | $ 2.6 | $ 0.3
Exercise of options and vested performance share units |  | 15,000 | 366,000
Exercise of options and vested performance share units |  | $ 0.0 | $ 0.3
Reversal of deferred tax recovery |  | $ 0.0 | $ (1.9)
Reversal of deferred tax recovery |  |  | 0
Balance |  | 675,957,000 | 579,115,000
Common shares, end of period |  | $ 3,144.5 | $ 3,035.2

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