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Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 1005500 - Statement - CONSOLIDATED BALANCE SHEETS PARENTHETICAL (Parentheticals) link:presentationLink link:calculationLink link:definitionLink 1003000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 1006000 - Statement - CONSOLIDATED STATEMENTS OF COMMON SHAREHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 1002000 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 1001000 - Statement - CONSOLIDATED STATEMENTS OF INCOME link:presentationLink link:calculationLink link:definitionLink 0001000 - Document - Document and Entity Information Document link:presentationLink link:calculationLink link:definitionLink 2119100 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 2419402 - 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Disclosure - Goodwill link:presentationLink link:calculationLink link:definitionLink 2408402 - Disclosure - Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 2308301 - Disclosure - Goodwill (Tables) link:presentationLink link:calculationLink link:definitionLink 2403403 - Disclosure - Hydro Acquisition Hydro-electric (Details) link:presentationLink link:calculationLink link:definitionLink 2403402 - Disclosure - Hydro Acquisition Purchase price allocation (Details) link:presentationLink link:calculationLink link:definitionLink 2103100 - Disclosure - Hydro Acquisition Regulated Operations (Notes) link:presentationLink link:calculationLink link:definitionLink 2303301 - Disclosure - Hydro Acquisition (Tables) link:presentationLink link:calculationLink link:definitionLink 2113100 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 2413405 - Disclosure - Income Taxes Deferred Tax Liability (Details) link:presentationLink link:calculationLink link:definitionLink 2413403 - 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Disclosure - Long-Term Debt and Capital Leases Other Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 2412402 - Disclosure - Long-Term Debt and Capital Leases Schedule of Debt (Details) link:presentationLink link:calculationLink link:definitionLink 2412403 - Disclosure - Long-Term Debt and Capital Leases Schedule of Long-Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 2312301 - Disclosure - Long-Term Debt and Capital Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 2101100 - Disclosure - Nature of Operations and Basis of Consolidation link:presentationLink link:calculationLink link:definitionLink 2401402 - Disclosure - Nature of Operations and Basis of Consolidation (Details) link:presentationLink link:calculationLink link:definitionLink 2201201 - Disclosure - Nature of Operations and Basis of Consolidation (Policies) link:presentationLink link:calculationLink link:definitionLink 2115100 - 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