Basis of Presentation (Policy)	3 Months Ended
Mar. 31, 2025
Basis of Presentation [Abstract]
Basis of Presentation	BASIS OF PRESENTATION The accompanying consolidated financial statements should be read in conjunction with the Annual Report on Form 10-K for the fiscal year ended December 31, 2024 for SBA Communications Corporation and its subsidiaries (the “Company”). These financial statements have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X and, therefore, omit or condense certain footnotes and other information normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States. In the opinion of the Company’s management, all adjustments (consisting of normal recurring accruals and deferrals) considered necessary for fair financial statement presentation have been made. The results of operations for an interim period may not give a true indication of the results for the full year. Certain reclassifications have been made to prior year amounts or balances to conform to the presentation adopted in the current year.
Use of Estimates	Use of Estimates The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. The significant estimates made by management relate to the allowance for doubtful accounts, the costs and revenue relating to the Company’s construction contracts, stock-based compensation assumptions, valuation allowance related to deferred tax assets, fair value of long-lived assets, the useful lives of towers and intangible assets, anticipated property tax assessments, incremental borrowing rate for lease accounting, fair value of investments, and asset retirement obligations. Management develops estimates based on historical experience and on various assumptions about the future that are believed to be reasonable based on the information available. These estimates ultimately may differ from actual results and such differences could be material.
Foreign Currency Translation	Foreign Currency Translation All assets and liabilities of foreign subsidiaries that do not utilize the U.S. dollar as its functional currency are translated at period-end exchange rates, while revenues and expenses are translated at monthly average exchange rates during the period. Unrealized translation gains and losses are reported as foreign currency translation adjustments through Accumulated other comprehensive loss, net in the Consolidated Statements of Shareholders’ Deficit. For foreign subsidiaries where the U.S. dollar is the functional currency, monetary assets and liabilities of such subsidiaries, which are not denominated in U.S. dollars, are remeasured at exchange rates in effect at the balance sheet date, and revenues and expenses are remeasured at monthly average rates prevailing during the year. Remeasurement gains and losses are reported as Other income (expense), net in the Consolidated Statements of Operations.
Intercompany Loans Subject to Remeasurement	Intercompany Loans Subject to Remeasurement In accordance with ASC 830, the Company remeasures foreign denominated intercompany loans with the corresponding change in the balance being recorded in Other income (expense), net in the Consolidated Statements of Operations as settlement is anticipated or planned in the foreseeable future. The Company recorded a $36.0 million gain and a $28.5 million loss, net of taxes, on the remeasurement of intercompany loans for the three months ended March 31, 2025 and 2024, respectively. During the three months ended March 31, 2025, the Company did not fund additional loans or make repayments on its intercompany loan agreements. As of March 31, 2025 and December 31, 2024, the aggregate amount outstanding under the intercompany loan agreements subject to remeasurement with the Company’s foreign subsidiaries was $1.1 billion. Subsequent to March 31, 2025, the Company did not fund additional loans or make repayments on its intercompany loan agreements.
Accounting Standards Updates	Accounting Standards Updates In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, requiring public business entities to provide improved income tax disclosures on an annual basis, primarily through enhanced disclosures related to rate reconciliation and income taxes paid information. The standard is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the effect of this standard on its consolidated financial statements and related disclosures. In November 2024, the FASB issued ASU 2024-03, Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, requiring improved expense disclosures, in the notes to the financial statements, of public business entities to provide more detailed information about certain costs and expenses. The standard is effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. Early adoption is permitted. The Company is currently evaluating the effect of this standard on its consolidated financial statements and related disclosures.

Basis of Presentation (Policy)

3 Months Ended

Mar. 31, 2025

BASIS OF PRESENTATION

The accompanying consolidated financial statements should be read in conjunction with the Annual Report on Form 10-K for the fiscal year ended December 31, 2024 for SBA Communications Corporation and its subsidiaries (the “Company”). These financial statements have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X and, therefore, omit or condense certain footnotes and other information normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States. In the opinion of the Company’s management, all adjustments (consisting of normal recurring accruals and deferrals) considered necessary for fair financial statement presentation have been made. The results of operations for an interim period may not give a true indication of the results for the full year. Certain reclassifications have been made to prior year amounts or balances to conform to the presentation adopted in the current year.

Use of Estimates

The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. The significant estimates made by management relate to the allowance for doubtful accounts, the costs and revenue relating to the Company’s construction contracts, stock-based compensation assumptions, valuation allowance related to deferred tax assets, fair value of long-lived assets, the useful lives of towers and intangible assets, anticipated property tax assessments, incremental borrowing rate for lease accounting, fair value of investments, and asset retirement obligations. Management develops estimates based on historical experience and on various assumptions about the future that are believed to be reasonable based on the information available. These estimates ultimately may differ from actual results and such differences could be material.

Foreign Currency Translation

All assets and liabilities of foreign subsidiaries that do not utilize the U.S. dollar as its functional currency are translated at period-end exchange rates, while revenues and expenses are translated at monthly average exchange rates during the period. Unrealized translation gains and losses are reported as foreign currency translation adjustments through Accumulated other comprehensive loss, net in the Consolidated Statements of Shareholders’ Deficit.

For foreign subsidiaries where the U.S. dollar is the functional currency, monetary assets and liabilities of such subsidiaries, which are not denominated in U.S. dollars, are remeasured at exchange rates in effect at the balance sheet date, and revenues and expenses are remeasured at monthly average rates prevailing during the year. Remeasurement gains and losses are reported as Other income (expense), net in the Consolidated Statements of Operations.

Intercompany Loans Subject to Remeasurement

In accordance with ASC 830, the Company remeasures foreign denominated intercompany loans with the corresponding change in the balance being recorded in Other income (expense), net in the Consolidated Statements of Operations as settlement is anticipated or planned in the foreseeable future. The Company recorded a $36.0 million gain and a $28.5 million loss, net of taxes, on the remeasurement of intercompany loans for the three months ended March 31, 2025 and 2024, respectively. During the three months ended March 31, 2025, the Company did not fund additional loans or make repayments on its intercompany loan agreements. As of March 31, 2025 and December 31, 2024, the aggregate amount outstanding under the intercompany loan agreements subject to remeasurement with the Company’s foreign subsidiaries was $1.1 billion. Subsequent to March 31, 2025, the Company did not fund additional loans or make repayments on its intercompany loan agreements.

Accounting Standards Updates

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, requiring public business entities to provide improved income tax disclosures on an annual basis, primarily through enhanced disclosures related to rate reconciliation and income taxes paid information. The standard is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the effect of this standard on its consolidated financial statements and related disclosures.

In November 2024, the FASB issued ASU 2024-03, Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, requiring improved expense

disclosures, in the notes to the financial statements, of public business entities to provide more detailed information about certain costs and expenses. The standard is effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. Early adoption is permitted. The Company is currently evaluating the effect of this standard on its consolidated financial statements and related disclosures.