Sunlands Technology Group (STG) SEC Filing 20-F Annual report for the fiscal year ending Tuesday, December 31, 2019

Document And Entity Information

Consolidated Balance Sheets

Consolidated Balance Sheets (Parenthetical)

Consolidated Statements Of Cashflows

Consolidated Statements Of Cashflows (Parenthetical)

Consolidated Statements Of Changes In Shareholders' Deficit

Consolidated Statements Of Changes In Shareholders' Deficit (Parenthetical)

Consolidated Statements Of Comprehensive Loss

Consolidated Statements Of Operations

Consolidated Statements Of Operations (Parenthetical)

Accrued Expenses And Other Current Liabilities

Accrued Expenses And Other Current Liabilities (Tables)

Accrued Expenses And Other Current Liabilities - Summary Of Accrued Expenses And Other Liabilities (Details)

Commitment And Contingencies - Additional Information (Details)

Commitments And Contingencies

Condensed Financial Information Of Parent Company

Deferred Costs

Deferred Costs (Tables)

Deferred Costs - Schedule Of Movements Of Deferred Costs (Details)

Employee Defined Contribution Plan

Employee Defined Contribution Plan - Additional Information (Details)

Fair Value Measurement

Financial Statement Schedule I - Condensed Financial Information Of Parent Company Balance Sheets (Details)

Financial Statement Schedule I - Condensed Financial Information Of Parent Company Balance Sheets (Parenthetical) (Details)

Financial Statement Schedule I - Condensed Financial Information Of Parent Company Consolidated Statements Of Comprehensive Loss (Details)

Financial Statement Schedule I - Condensed Financial Information Of Parent Company Statements Of Cash Flows (Details)

Financial Statement Schedule I - Condensed Financial Information Of Parent Company Statements Of Cash Flows (Parenthetical) (Details)

Financial Statement Schedule I - Condensed Financial Information Of Parent Company Statements Of Operations (Details)

Income Taxes

Income Taxes (Tables)

Income Taxes - Additional Information (Details)

Income Taxes - Schedule Of Components Of Deferred Income Tax (Details)

Income Taxes - Schedule Of Reconciliation Of Effective Tax Rate And Statutory Income Tax Rate Applicable To Prc Operations (Details)

Income Taxes - Schedule Of Reconciliation Of Effective Tax Rate And Statutory Income Tax Rate Applicable To Prc Operations (Parenthetical) (Details)

Intangible Assets, Net

Intangible Assets, Net (Tables)

Intangible Assets, Net - Additional Information (Details)

Intangible Assets, Net - Summary Of Amortization Expenses Of Intangible Assets (Details)

Intangible Assets, Net - Summary Of Intangible Assets (Details)

Leases

Leases (Tables)

Leases - Additional Information (Details)

Leases - Schedule Of Future Minimum Payments Under Non-Cancelable Operating Leases To Offices And Enrollment Centers (Details)

Leases - Summary Of Maturity Analysis Of Annual Undiscounted Cash Flows For Lease Liabilities (Details)

Leases - Summary Of Operating Leases (Details)

Long-Term Debt

Long-Term Debt - Additional Information (Details)

Long-Term Investments

Long-Term Investments - Additional Information (Details)

Net Loss Per Share

Net Loss Per Share (Tables)

Net Loss Per Share - Additional Information (Details)

Net Loss Per Share - Schedule Of Calculation Of Net Loss Per Share (Details)

Ordinary Shares

Ordinary Shares - Additional Information (Details)

Organization And Basis Of Presentation

Organization And Basis Of Presentation (Tables)

Organization And Basis Of Presentation - Additional Information (Details)

Organization And Basis Of Presentation - Summary Financial Information Of Vies And Their Subsidiaries (Details)

Organization And Basis Of Presentation - Summary Of Subsidiaries Vies And Vies' Subsidiaries (Details)

Other Non-Current Assets

Other Non-Current Assets (Tables)

Other Non-Current Assets - Summary Of Other Non-Current Assets (Details)

Other Non-Current Assets - Summary Of Other Non-Current Assets (Parenthetical) (Details)

Prepaid Expenses And Other Current Assets

Prepaid Expenses And Other Current Assets (Tables)

Prepaid Expenses And Other Current Assets - Summary Of Prepaid Expenses And Other Current Assets (Details)

Property And Equipment, Net

Property And Equipment, Net (Tables)

Property And Equipment, Net - Additional Information (Details)

Property And Equipment, Net - Summary Of Property And Equipment Consisted (Details)

Property And Equipment, Net - Summary Of Property And Equipment Consisted (Parenthetical) (Details)

Related Party Transaction

Related Party Transaction (Tables)

Related Party Transaction - Additional Information - (Details)

Related Party Transaction - Summary Of Related Party Transactions (Details)

Restricted Net Assets

Restricted Net Assets - Additional Information (Details)

Revenues And Deferred Revenue

Revenues And Deferred Revenue (Tables)

Revenues And Deferred Revenue - Additional Information (Details)

Revenues And Deferred Revenue - Additional Information (Details1)

Revenues And Deferred Revenue - Schedule Of Disaggregated Revenues (Details)

Revenues And Deferred Revenue - Schedule Of Movement Of The Deferred Revenue (Details)

Segment Reporting

Segment Reporting - Additional Information (Details)

Share Incentive Plan

Share Incentive Plan (Tables)

Share Incentive Plan - Additional Information (Details)

Share Incentive Plan - Schedule Of Assumptions Used To Calculate Estimated Fair Value Of Options (Details)

Share Incentive Plan - Schedule Of Share-Based Compensation Expense Recognized (Details)

Share Incentive Plan - Summary Of Option Activities And Changes (Details)

Short-Term Investments

Short-Term Investments (Tables)

Short-Term Investments - Additional Information (Details)

Short-Term Investments - Schedule Of Short-Term Investment (Details)

Significant Accounting Policies

Significant Accounting Policies (Policies)

Significant Accounting Policies (Tables)

Significant Accounting Policies - Additional Information (Details)

Significant Accounting Policies - Summary Of Estimated Useful Lives Of Intangible Assets (Details)

Significant Accounting Policies - Summary Of Estimated Useful Lives Of Property And Equipment (Details)

Subsequent Events