| As Of | Filing | | Doc. | | Page | | Title | Docs. |
|---|
| | |  |
| 3/21/24 | | DEF 14A | | | | 1 | | A-1 | 1 |
| | | | | | 1 | | Advisory Vote on Executive Compensation | 1 |
| | | | | | 1 | | Amendment to the 2019 Stock Incentive Plan | 1 |
| | | | | | 1 | | APPENDIX A: AMENDMENT No. 2 to 2019 STOCK INCENTIVE PLAN | 1 |
| | | | | | 1 | | Audit Committee Report | 1 |
| | | | | | 1 | | Board Composition and Nomination Process | 1 |
| | | | | | 1 | | Board Leadership Structure | 1 |
| | | | | | 1 | | Board Meetings and Committees | 1 |
| 2/16/24 | | 10-K | | | | 1 | | Business | 1 |
| 3/21/24 | | DEF 14A | | | | 1 | | Certain Contractual Arrangements with Directors and Executive Officers | 1 |
| | | | | | 1 | | Certain Relationships and Related Transactions | 1 |
| 2/16/24 | | 10-K | | | | 1 | | Certain Relationships and Related Transactions, and Director Independence | 1 |
| | | | | | 1 | | Changes in and Disagreements with Accountants on Accounting and Financial Disclosure | 1 |
| 3/21/24 | | DEF 14A | | | | 1 | | Compensation Committee Report | 1 |
| | | | | | 1 | | Compensation Discussion and Analysis | 1 |
| | | | | | 1 | | Compensation of Directors | 1 |
| | | | | | 1 | | Compensation Risk | 1 |
| 2/16/24 | | 10-K | | | | 1 | | Consolidated Balance Sheets at December 31, 2023 and 2022 | 1 |
| | | | | | 1 | | Consolidated Statements of Cash Flows for the years ended December 31, 2023, 2022, and 2021 | 1 |
| | | | | | 1 | | Consolidated Statements of Comprehensive Income (Loss) for the years ended December 31, 2023, 2022, and 2021 | 1 |
| | | | | | 1 | | Consolidated Statements of Operations for the years ended December 31, 2023, 2022, and 2021 | 1 |
| | | | | | 1 | | Consolidated Statements of Stockholders' Equity for the years ended December 31, 2023, 2022, and 2021 | 1 |
| | | | | | 1 | | Controls and Procedures | 4 |
| 3/21/24 | | DEF 14A | | | | 1 | | Corporate Social Responsibility | 1 |
| 2/16/24 | | 10-K | | | | 1 | | Cybersecurity | 1 |
| 11/6/23 | | 10-Q | | | | 1 | | Defaults Upon Senior Securities | 3 |
| 3/21/24 | | DEF 14A | | | | 1 | | Delinquent Section 16(a) Reports | 1 |
| 2/16/24 | | 10-K | | | | 1 | | Directors, Executive Officers and Corporate Governance | 1 |
| 3/21/24 | | DEF 14A | | | | 1 | | Election of Directors Members of the Board | 1 |
| | | | | | 1 | | Equity Compensation Plan Information | 1 |
| 2/16/24 | | 10-K | | | | 1 | | Executive Compensation | 1 |
| 3/21/24 | | DEF 14A | | | | 1 | | Executive Officers | 1 |
| 11/6/23 | | 10-Q | | | | 1 | | Exhibits | 3 |
| 2/16/24 | | 10-K | | | | 1 | | Exhibits, Financial Statement Schedules | 1 |
| 11/6/23 | | 10-Q | | | | 1 | | Financial Statements | 3 |
| 2/16/24 | | 10-K | | | | 1 | | Financial Statements and Supplementary Data | 1 |
| 3/21/24 | | DEF 14A | | | | 1 | | Governance Highlights | 1 |
| | | | | | 1 | | Governance Policies and Practices | 1 |
| | | | | | 1 | | Grants of Plan-Based Awards | 1 |
| | | | | | 1 | | Independence of Board | 1 |
| | | | | | 1 | | Independent Auditor Fees and Other Matters | 1 |
| | | | | | 1 | | Investor Outreach | 1 |
| 2/16/24 | | 10-K | | | | 1 | | Legal Proceedings | 4 |
| | | | | | 1 | | Management's Discussion and Analysis of Financial Condition and Results of Operations | 4 |
| | | | | | 1 | | Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities | 1 |
| | | | | | 1 | | Mine Safety Disclosures | 4 |
| | | | | | 1 | | Notes to Consolidated Financial Statements | 1 |
| 3/21/24 | | DEF 14A | | | | 1 | | Option Exercises and Stock Vested During 2023 | 1 |
| 2/16/24 | | 10-K | | | | 1 | | Other Information | 4 |
| 3/21/24 | | DEF 14A | | | | 1 | | Outstanding Equity Awards at Fiscal Year End | 1 |
| | | | | | 1 | | Oversight of Risk Management | 1 |
| 2/16/24 | | 10-K | | | | 1 | | Part I | 1 |
| 11/6/23 | | 10-Q | | | | 1 | | Part I-Financial Information | 3 |
| 2/16/24 | | 10-K | | | | 1 | | Part Ii | 1 |
| 11/6/23 | | 10-Q | | | | 1 | | Part Ii-Other Information | 3 |
| 2/16/24 | | 10-K | | | | 1 | | Part Iii | 1 |
| | | | | | 1 | | Part Iv | 1 |
| 3/21/24 | | DEF 14A | | | | 1 | | Pay Ratio | 1 |
| | | | | | 1 | | Pay versus Performance | 1 |
| | | | | | 1 | | Potential Payments Upon Termination or Change in Control | 1 |
| | | | | | 1 | | Pre-approval Policies and Procedures | 1 |
| 2/16/24 | | 10-K | | | | 1 | | Principal Accounting Fees and Services | 1 |
| | | | | | 1 | | Properties | 1 |
| 3/21/24 | | DEF 14A | | | | 1 | | Proposal 1 -- Election of Directors Members of the Board | 1 |
| | | | | | 1 | | Proposal 2 -- Amendment to the 2019 Stock Incentive Plan | 1 |
| | | | | | 1 | | Proposal 3 -- Advisory Vote on Executive Compensation | 1 |
| | | | | | 1 | | Proposal 4 -- Ratification of Appointment of KPMG | 1 |
| | | | | | 1 | | Proxy Statement Summary | 1 |
| 2/16/24 | | 10-K | | | | 1 | | Quantitative and Qualitative Disclosures about Market Risk | 4 |
| 3/21/24 | | DEF 14A | | | | 1 | | Ratification of Appointment of KPMG | 1 |
| 2/16/24 | | 10-K | | | | 1 | | Report of Independent Registered Public Accounting Firm | 1 |
| | | | | | 1 | | Reserved | 1 |
| | | | | | 1 | | Risk Factors | 4 |
| 11/6/23 | | 10-Q | | | | 1 | | Safe Harbor Statement | 3 |
| 2/16/24 | | 10-K | | | | 1 | | Schedule II-Valuation and Qualifying Accounts | 1 |
| 3/21/24 | | DEF 14A | | | | 1 | | Security Ownership of Certain Beneficial Owners and Management | 1 |
| 2/16/24 | | 10-K | | | | 1 | | Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters | 1 |
| | | | | | 1 | | Signatures | 4 |
| 3/21/24 | | DEF 14A | | | | 1 | | Stock Ownership Guidelines: Directors | 1 |
| 2/16/24 | | 10-K | | | | 1 | | Stock Performance Graph | 1 |
| 3/21/24 | | DEF 14A | | | | 1 | | Summary Compensation Table | 1 |
| | | | | | 1 | | Table of Contents | 5 |
| 11/6/23 | | 10-Q | | | | 1 | | Unregistered Sales of Equity Securities and Use of Proceeds | 3 |
| 2/16/24 | | 10-K | | | | 1 | | Unresolved Staff Comments | 1 |
| 3/21/24 | | DEF 14A | | | | 1 | | Voting and Meeting Information | 1 |
