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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITIES - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Mar. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016
Balance, beginning of period |  |  |  | $ 2,073.2 |
Common share issuance | [1] |  |  | 166.6 |
Change in fair value of hedging instruments (net of tax) |  |  |  | (0.1) | $ 10.3
Gain (loss) on revaluation of gold stream obligation (net of tax) | [2] |  |  | 7.6 | 67.8
Net earnings |  | $ (22.3) | $ 25.6 | (108.0) | (7.0)
Balance, end of period |  | 2,073.2 |  | 2,139.5 | 2,073.2
COMMON SHARES |  |  |  |  |
Balance, beginning of period |  |  | 2,841.0 | 2,859.0 | 2,841.0
Common share issuance |  |  |  | 176.1 | 17.6
Exercise of options and vested PSUs |  |  |  | 1.4 | 0.4
Balance, end of period |  | 2,859.0 |  | 3,036.5 | 2,859.0
CONTRIBUTED SURPLUS |  |  |  |  |
Balance, beginning of period |  |  | 102.3 | 100.5 | 102.3
Exercise of options and vested PSUs |  |  |  | (0.8) | (6.9)
Equity settled share-based payments |  |  |  | 3.5 | 5.4
Reclassification of share-based payments |  |  |  | 0.0 | (0.3)
Balance, end of period |  | 100.5 |  | 103.2 | 100.5
OTHER RESERVES |  |  |  |  |
Balance, beginning of period |  |  | 2.6 | (33.0) | 2.6
Change in fair value of hedging instruments (net of tax) |  |  |  | (0.1) | 10.3
Gain (loss) on revaluation of gold stream obligation (net of tax) |  |  |  | (5.8) | (45.9)
Balance, end of period |  | (33.0) |  | (38.9) | (33.0)
DEFICIT |  |  |  |  |
Balance, beginning of period |  |  | $ (846.3) | (853.3) | (846.3)
Net earnings |  |  |  | (108.0) | (7.0)
Balance, end of period |  | $ (853.3) |  | $ (961.3) | $ (853.3)
[1] | On March 10, 2017, the Company closed a bought deal financing and related agreements and issued 61.7 million common shares at a price of $2.80 per share. Proceeds of $172.9 million are included within equity net of equity issuance costs of $8.2 million and the associated deferred tax recovery of $1.9 million.
[2] | Fair value adjustments related to changes in the Company’s own credit risk are included in other comprehensive income.

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