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Cover
Document and Entity Information
Financial Statements
Consolidated Balance Sheets
Consolidated Balance Sheets (Parenthetical)
Consolidated Statements of Operations
Consolidated Statements of Operations (Parenthetical)
Consolidated Statements of Comprehensive Income or Loss
Consolidated Statements of Stockholders' Equity
Consolidated Statements of Cash Flows
Notes to Financial Statements
General Information
Chapter 11 Proceedings
Revenue from Contracts with Customers
Asset Impairments
Supplemental Financial Information
Stock-Based Compensation
Loss Per Share
Financial Instruments and Fair Value Disclosures
Drilling and Other Property and Equipment
Credit Agreements and Senior Notes
Commitments and Contingencies
Leases and Lease Commitments
Related-Party Transactions
Restructuring and Separation Costs
Income Taxes
Employee Benefit Plans
Segments and Geographic Area Analysis
Subsequent Event
Accounting Policies
General Information (Policies)
Notes Tables
Chapter 11 Proceedings (Tables)
Revenue from Contracts with Customers (Tables)
Supplemental Financial Information (Tables)
Stock-Based Compensation (Tables)
Loss Per Share (Tables)
Financial Instruments and Fair Value Disclosures (Tables)
Drilling and Other Property and Equipment (Tables)
Credit Agreements and Senior Notes (Tables)
Leases and Lease Commitments (Tables)
Income Taxes (Tables)
Segments and Geographic Area Analysis (Tables)
Notes Details
General Information - Additional Information (Detail)
Chapter 11 Proceedings - Additional Information (Detail)
Chapter 11 Proceedings - Schedule of Reorganization Items Incurred (Detail)
Chapter 11 Proceedings - Schedule of Reorganization Items Incurred (Detail) (Parenthetical)
Chapter 11 Proceedings - Summary of Liabilities Subject to Compromise (Detail)
Chapter 11 Proceedings - Summary of Liabilities Subject to Compromise (Parenthetical) (Detail)
Chapter 11 Proceedings - Debtor-in-Possession Condensed Combined Balance Sheet (Detail)
Chapter 11 Proceedings - Debtor-in-Possession Condensed Combined Statement of Operations (Detail)
Chapter 11 Proceedings - Debtor-in-Possession Condensed Combined Statement of Cash Flows (Detail)
Revenue from Contracts with Customers - Additional Information (Detail)
Revenue from Contracts with Customers - Summary of Information about Receivables, Contract Assets and Contract Liabilities from Contracts with Customers (Detail)
Revenue from Contracts with Customers - Summary of Significant Changes in Contract Assets and Contract Liabilities Balances (Detail)
Revenue from Contracts with Customers - Summary of Revenue Expected to be Recognized in Future Related to Unsatisfied Performance Obligations (Detail)
Revenue from Contracts with Customers - Summary of Revenue Expected to be Recognized in Future Related to Unsatisfied Performance Obligations (Detail 1)
Asset Impairments - Additional Information (Detail)
Supplemental Financial Information - Accounts Receivable, Net of Allowance for Doubtful Accounts (Detail)
Supplemental Financial Information - Prepaid Expenses and Other Current Assets (Detail)
Supplemental Financial Information - Accrued Liabilities (Detail)
Supplemental Financial Information - Noncash Investing and Financing Activities (Detail)
Supplemental Financial Information - Noncash Investing and Financing Activities (Parenthetical) (Detail)
Supplemental Financial Information - Additional Information (Detail)
Stock-Based Compensation - Additional Information (Detail)
Stock-Based Compensation - Weighted Average Assumptions Used in Estimating Fair Value of Options and SARs (Detail)
Stock-Based Compensation - Summary of Activity Under Stock Plan (Detail)
Stock-Based Compensation - Summary of Restricted Stock Units Awarded Under Equity Plan (Detail)
Loss Per Share - Securities Excluded from Computations of Diluted Loss Per Share (Detail)
Financial Instruments and Fair Value Disclosures - Additional Information (Detail)
Financial Instruments and Fair Value Disclosures - Assets Measured at Fair Value on Nonrecurring and Recurring Basis (Detail)
Financial Instruments and Fair Value Disclosures - Assets Measured at Fair Value on Nonrecurring and Recurring Basis (Parenthetical) (Detail)
Financial Instruments and Fair Value Disclosures - Fair Value and Related Carrying Values of Our Debt Instruments (Detail)
Financial Instruments and Fair Value Disclosures - Fair Value and Related Carrying Values of Our Debt Instruments (Parenthetical) (Detail)
Drilling and Other Property and Equipment - Summary of Cost and Accumulated Depreciation of Drilling and Other Property and Equipment (Detail)
Drilling and Other Property and Equipment - Additional Information (Detail)
Credit Agreements and Senior Notes - Credit Agreement - Additional Information (Detail)
Credit Agreements and Senior Notes - Summary of Senior Notes (Detail)
Credit Agreements and Senior Notes - Summary of Senior Notes (Parenthetical) (Detail)
Credit Agreements and Senior Notes - Senior Notes - Additional Information (Detail)
Credit Agreements and Senior Notes - Summary of Carrying Value of Senior Notes, Net of Unamortized Discount and Debt Issuance Costs (Detail)
Credit Agreements and Senior Notes - Summary of Carrying Value of Senior Notes, Net of Unamortized Discount and Debt Issuance Costs (Parenthetical) (Detail)
Commitments and Contingencies - Additional Information (Detail)
Leases and Leases Commitments - Additional Information (Details)
Leases and Leases Commitments - Components of Lease Expense (Details)
Leases and Leases Commitments - Supplemental Information Related to Leases (Details)
Leases and Leases Commitments - Schedule of Maturities of Lease Liabilities (Details)
Related-Party Transactions - Additional Information (Detail)
Restructuring and Separation Costs - Additional Information (Detail)
Income Taxes - Additional Information (Detail)
Income Taxes - Components of Income Tax Expense (Benefit) (Detail)
Income Taxes - Difference Between Actual Income Tax Expense and Tax Provision Computed by Applying Statutory Federal Income Tax Rate to Income Before Taxes (Detail)
Income Taxes - Components of Deferred Income Tax Assets and Liabilities (Detail)
Income Taxes - Summary of Rollforward of Beginning and Ending Amount of Unrecognized Tax Benefits, Excluding Interest and Penalties (Detail)
Employee Benefit Plans - Additional Information (Detail)
Segments and Geographic Area Analysis - Additional Information (Detail)
Segments and Geographic Area Analysis - Summary of Information about Disaggregated Revenue by Equipment-type and Country (Detail)
Segments and Geographic Area Analysis - Summary of Information about Disaggregated Revenue by Equipment-type and Country (Parenthetical) (Detail)
Segments and Geographic Area Analysis - Long-Lived Tangible Assets by Country (Detail)
Segments and Geographic Area Analysis - Long-Lived Tangible Assets by Country (Parenthetical) (Detail)
Segments and Geographic Area Analysis - Revenues from Major Customers that Contributed More than 10% of Total Revenues (Detail)
Subsequent Event - Additional Information (Detail)
All Reports