v3.5.0.2

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2016 | Dec. 31, 2015
CONSOLIDATED BALANCE SHEETS |  |
Accumulated Depreciation on Property, Plant, and Equipment | $ 268.8 | $ 236.3
Accumulated amortization on power purchase agreements and other intangible assets | 271.0 | 238.0
Accumulated amortization on power purchase and fuel supply agreement liabilities | $ 15.4 | $ 14.0
Common shares, no par value (in dollars per share) | $ 0 | $ 0
Common Stock, Shares Authorized, Unlimited | Unlimited | Unlimited
Common shares, issued shares (in shares) | 120,682,964 | 122,153,082
Common shares, outstanding shares (in shares) | 120,682,964 | 122,153,082

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