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Cover
Document And Entity Information
Financial Statements
Condensed Consolidated Balance Sheets
Condensed Consolidated Balance Sheets (Parenthetical)
Condensed Consolidated Statements Of Operations
Condensed Consolidated Statements Of Comprehensive Loss
Condensed Consolidated Statements Of Shareholders' Equity
Condensed Consolidated Statements Of Cash Flows
Notes to Financial Statements
Basis Of Presentation And New Accounting Standards
Company Overview
Alliance Acquisition
Details Of Certain Accounts
Leases
Long-Term Debt
Income Taxes
Share Repurchase Programs
Revenue From Contracts With Customers
Earnings Per Share
Employee Benefit Plans
Business Segment Information
Asset Retirement Obligations
Commitments And Contingencies And Other Matters
Cash Flow Information
Allowance for Credit Losses
Fair Value Measurements
Accounting Policies
Basis Of Presentation And New Accounting Standards (Policies)
Notes Tables
Alliance Acquisition (Tables)
Details Of Certain Accounts (Tables)
Leases (Tables)
Long-Term Debt (Tables)
Revenue From Contracts With Customers (Tables)
Earnings Per Share (Tables)
Employee Benefit Plans (Tables)
Business Segment Information (Tables)
Asset Retirement Obligations (Tables)
Cash Flow Information (Tables)
Allowance For Credit Losses (Tables)
Fair Value Measurements (Tables)
Notes Details
Company Overview (Details)
Alliance Acquisition (Details)
Alliance Acquisition - Pro forma information (Details)
Details Of Certain Accounts - Other Current Assets (Details)
Details Of Certain Accounts - Other Assets, Net (Details)
Details Of Certain Accounts - Accrued Liabilities (Details)
Details Of Certain Accounts - Other Non-Current Liabilities (Details)
Leases - Components Of Lease Cost (Details)
Leases - Maturities Of Operating Lease Liabilities (Details)
Leases - Weighted Average Remaining Lease Term And Discount Rate (Details)
Leases - Other Information Related To Operating Leases (Details)
Long-Term Debt - Maturities Of Long-Term Debt (Details)
Long-Term Debt - Credit Agreement (Details)
Long-Term Debt - Convertible Senior Notes Due 2022 (Details)
Long-Term Debt - Convertible Senior Notes Due 2023 (Details)
Long-Term Debt - Convertible Senior Notes Due 2026 (Details)
Long-Term Debt - 2026 Capped Calls (Details)
Long-Term Debt - MARAD Debt (Details)
Long-Term Debt - Components Of Net Interest Expense (Details)
Income Taxes - Narrative (Details)
Share Repurchase Programs (Details)
Revenue From Contracts With Customers - Disaggregation Of Revenue (Details)
Revenue From Contracts With Customers - Contract Balances (Details)
Revenue From Contracts With Customers - Remaining Performance Obligations (Details)
Earnings Per Share - Computations Of Basic And Diluted EPS (Details)
Earnings Per Share - Shares Included in Diluted Calculations Assuming Earnings (Details)
Earnings Per Share - Potentially Dilutive Shares Excluded From Diluted EPS Calculation (Details)
Employee Benefit Plans - Narrative (Details)
Employee Benefit Plans - Share-Based Awards Granted (Details)
Business Segment Information - Narrative (Details)
Business Segment Information - Financial Data By Reportable Segment (Details)
Business Segment Information - Intercompany Segment Revenues (Details)
Business Segment Information - Total Assets By Reportable Segment (Details)
Asset Retirement Obligations - Acquisitions (Details)
Asset Retirement Obligations - Changes in AROs (Details)
Commitments And Contingencies And Other Matters - Narrative (Details)
Cash Flow Information - Supplemental Cash Flow Information (Details)
Cash Flow Information - Narrative (Details)
Allowance For Credit Losses - Activities In Allowance For Credit Losses (Details)
Fair Value Measurements - Assets And Liabilities At Fair Value On Recurring Basis (Details)
Fair Value Measurements - Change in Fair Value of Contingent Consideration (Details)
Fair Value Measurements - Principal Amount And Estimated Fair Value Of Long-Term Debt (Details)
All Reports