0001001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 1001002 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 1002003 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1003004 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 1004005 - Statement - CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 1005006 - Statement - CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1006007 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 2101101 - Disclosure - Nature of Operations link:presentationLink link:calculationLink link:definitionLink 2402401 - Disclosure - Nature of Operations (Details) link:presentationLink link:calculationLink link:definitionLink 2103102 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 2204201 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 2305301 - Disclosure - Summary of Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 2406402 - Disclosure - Summary of Significant Accounting Policies - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2407403 - Disclosure - Summary of Significant Accounting Policies - Benefit Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 2108103 - Disclosure - Discontinued Operations link:presentationLink link:calculationLink link:definitionLink 2309302 - Disclosure - Discontinued Operations (Tables) link:presentationLink link:calculationLink link:definitionLink 2410404 - Disclosure - Discontinued Operations - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2411405 - Disclosure - Discontinued Operations - Carrying Amounts of the Major Classes of Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 2412406 - Disclosure - Discontinued Operations - Income (Loss) From Discontinued Operations (Details) link:presentationLink link:calculationLink link:definitionLink 2113104 - Disclosure - Revenue from Contracts with Customers link:presentationLink link:calculationLink link:definitionLink 2314303 - Disclosure - Revenue from Contracts with Customers (Tables) link:presentationLink link:calculationLink link:definitionLink 2415407 - Disclosure - Revenue from Contracts with Customers - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2416408 - Disclosure - Revenue from Contracts with Customers Revenue from Contracts with Customers - Amortized and Capitalized Costs (Details) link:presentationLink link:calculationLink link:definitionLink 2117105 - Disclosure - Investments link:presentationLink link:calculationLink link:definitionLink 2318304 - Disclosure - Investments (Tables) link:presentationLink link:calculationLink link:definitionLink 2419409 - Disclosure - Investments - Other Investments (Details) link:presentationLink link:calculationLink link:definitionLink 2420410 - Disclosure - Investments - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2121106 - Disclosure - Property, Plant and Equipment link:presentationLink link:calculationLink link:definitionLink 2322305 - Disclosure - Property, Plant and Equipment (Tables) link:presentationLink link:calculationLink link:definitionLink 2423411 - Disclosure - Property, Plant and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 2124107 - Disclosure - Goodwill and Intangible Assets link:presentationLink link:calculationLink link:definitionLink 2325306 - Disclosure - Goodwill and Intangible Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 2426412 - Disclosure - Goodwill and Intangible Assets - Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2427413 - Disclosure - Goodwill and Intangible Assets - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2428414 - Disclosure - Goodwill and Intangible Assets - Estimated Useful Life (Details) link:presentationLink link:calculationLink link:definitionLink 2429415 - Disclosure - Goodwill and Intangible Assets Goodwill and Intangible Assets - Amortization Expense for Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2130108 - Disclosure - Other Assets and Accrued Liabilities link:presentationLink link:calculationLink link:definitionLink 2331307 - Disclosure - Other Assets and Accrued Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 2432416 - Disclosure - Other Assets and Accrued Liabilities - Current Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2433417 - Disclosure - Other Assets and Accrued Liabilities - Long-Term Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2434418 - Disclosure - Other Assets and Accrued Liabilities - Current Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 2435419 - Disclosure - Other Assets and Accrued Liabilities - Long Term Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 2436420 - Disclosure - Other Assets and Accrued Liabilities - Asset Removal Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 2137109 - Disclosure - Leases link:presentationLink link:calculationLink link:definitionLink 2338308 - Disclosure - Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 2439421 - Disclosure - Leases - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2440422 - Disclosure - Leases - Maturity of Lease Liability - Lessee (Details) link:presentationLink link:calculationLink link:definitionLink 2440422 - Disclosure - Leases - Maturity of Lease Liability - Lessee (Details) link:presentationLink link:calculationLink link:definitionLink 2441423 - Disclosure - Leases - Maturity of Lease Liability - Lessor (Details) link:presentationLink link:calculationLink link:definitionLink 2142110 - Disclosure - Debt link:presentationLink link:calculationLink link:definitionLink 2343309 - Disclosure - Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 2444424 - Disclosure - Debt (Details) link:presentationLink link:calculationLink link:definitionLink 2445425 - Disclosure - Debt - Credit Agreement (Details) link:presentationLink link:calculationLink link:definitionLink 2446426 - Disclosure - Debt - Financial Covenants in Credit Agreements (Details) link:presentationLink link:calculationLink link:definitionLink 2147111 - Disclosure - Derivative and Hedging link:presentationLink link:calculationLink link:definitionLink 2348310 - Disclosure - Derivative and Hedging (Tables) link:presentationLink link:calculationLink link:definitionLink 2449427 - Disclosure - Derivative and Hedging - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2450428 - Disclosure - Derivative and Hedging - Schedule of Derivative Instruments (Fair Value) (Details) link:presentationLink link:calculationLink link:definitionLink 2451429 - Disclosure - Derivative and Hedging - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) link:presentationLink link:calculationLink link:definitionLink 2451429 - Disclosure - Derivative and Hedging - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) link:presentationLink link:calculationLink link:definitionLink 2152112 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 2353311 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 2454430 - Disclosure - Income Taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2455431 - Disclosure - Income Taxes - Components of Federal and State Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 2456432 - Disclosure - Income Taxes - Reconciliation of Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 2457433 - Disclosure - Income Taxes - Deferred Tax Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 2158113 - Disclosure - Earnings per Share & Stock Compensation link:presentationLink link:calculationLink link:definitionLink 2359312 - Disclosure - Earnings per Share & Stock Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 2460434 - Disclosure - Earnings per Share & Stock Compensation - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2461435 - Disclosure - Earnings per Share & Stock Compensation - Schedule of Stock Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 2462436 - Disclosure - Earnings per Share & Stock Compensation - Basic and Diluted Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 2163114 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 2464437 - Disclosure - Commitments and Contingencies Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2165115 - Disclosure - Segment Reporting link:presentationLink link:calculationLink link:definitionLink 2366313 - Disclosure - Segment Reporting (Tables) link:presentationLink link:calculationLink link:definitionLink 2467438 - Disclosure - Segment Reporting - Selected Financial Data for Segments (Details) link:presentationLink link:calculationLink link:definitionLink 2468439 - Disclosure - Segment Reporting - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Details) link:presentationLink link:calculationLink link:definitionLink 2169116 - Disclosure - Quarterly Results (unaudited) link:presentationLink link:calculationLink link:definitionLink 2370314 - Disclosure - Quarterly Results (unaudited) (Tables) link:presentationLink link:calculationLink link:definitionLink 2471440 - Disclosure - Quarterly Results (unaudited) (Details) link:presentationLink link:calculationLink link:definitionLink 2172117 - Disclosure - Schedule II Valuation and Qualifying Accounts link:presentationLink link:calculationLink link:definitionLink 2473441 - Disclosure - Schedule II Valuation and Qualifying Accounts and Reserves (Details) link:presentationLink link:calculationLink link:definitionLink