XML 102 R2.htm IDEA: XBRL DOCUMENT
v3.25.1

Pay vs Performance Disclosure - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Pay vs Performance Disclosure |  |  |  |  |
Pay vs Performance Disclosure, Table | Pay Versus Performance As required by Section 953(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 402(v) of Regulation S-K, we are providing the following information about the relationship between executive “Compensation Actually Paid” (or “CAP”), as defined by SEC rules, and certain of our financial performance metrics. For further information concerning our variable pay-for-performance philosophy and how we align executive compensation with our performance, refer to the “Compensation Discussion and Analysis” section of this proxy statement.
Year |  | Summary Compensation Table Total for CEO |  |  | Compensation Actually Paid to CEO |  |  | Average Summary Compensation Table Total for Non-CEO NEOs |  |  | Average Compensation Actually Paid to Non-CEO NEOs |  |  | Value of Initial Fixed $100 Investment Based On: |  |  | Net Income (in thousands) |  |  | AFFO per Share |
|  | Total Shareholder Return |  |  |  | Peer Group Total Shareholder Return |
(a) |  |  | (b) |  |  |  | (c) |  |  |  | (d) |  |  |  | (e) |  |  |  | (f) |  |  |  | (g) |  |  |  | (h) |  |  |  | (i) |
2024 |  | $ | 8,817,502 |  |  | $ | 4,796,116 |  |  | $ | 3,331,586 |  |  | $ | 1,720,240 |  |  | $ | 89.44 |  |  | $ | 86.78 |  |  | $ | 749,536 |  |  | $ | 13.37 |
2023 |  | $ | 11,261,032 |  |  | $ | 7,851,613 |  |  | $ | 3,504,909 |  |  | $ | 2,695,520 |  |  | $ | 109.31 |  |  | $ | 100.41 |  |  | $ | 501,812 |  |  | $ | 13.08 |
2022 |  | $ | 13,334,754 |  |  | ($ | 4,794,761 | ) |  | $ | 5,207,307 |  |  | ($ | 1,385,547 | ) |  | $ | 119.01 |  |  | $ | 100.87 |  |  | $ | 461,429 |  |  | $ | 12.25 |
2021 |  | $ | 9,995,179 |  |  | $ | 32,023,793 |  |  | $ | 3,949,044 |  |  | $ | 11,961,853 |  |  | $ | 163.70 |  |  | $ | 140.99 |  |  | $ | 237,624 |  |  | $ | 10.74 |
2020 |  | $ | 12,819,044 |  |  | $ | 26,154,495 |  |  | $ | 4,956,287 |  |  | $ | 9,750,582 |  |  | $ | 117.81 |  |  | $ | 105.39 |  |  | $ | 24,104 |  |  | $ | 9.43 |
Column (b) . Reflects compensation amounts reported in the “Summary Compensation Table” or “SCT” for 2020, 2021, 2022 and 2023 for our former CEO, Jeffrey A. Stoops, and for 2024, for our CEO, Brendan T. Cavanagh. Column (c) . CAP for our former CEO, Mr. Stoops, in each of 2020, 2021, 2022 and 2023 and our CEO, Mr. Cavanagh, in 2024 reflects the respective amounts set forth in column (b), adjusted as set forth in the table below, as determined in accordance with SEC rules. The dollar amounts reflected in column (c) do not reflect the actual amount of compensation earned by or paid to our former CEO during the applicable year. For information regarding decisions made by our Compensation Committee with respect to the former CEO’s compensation for each fiscal year, please see the “Compensation Discussion and Analysis” section of this proxy statement and the proxy statements for the 2024, 2023, 2022 and 2021 annual meetings of shareholders.
Year |  | 2020 |  |  | 2021 |  |  | 2022 |  |  | 2023 |  |  | 2024 |
CEO |  |  | Mr. Stoops |  |  |  | Mr. Stoops |  |  |  | Mr. Stoops |  |  |  | Mr. Stoops |  |  |  | Mr. Cavanagh |
SCT Total Compensation ($) |  |  | 12,819,044 |  |  |  | 9,995,179 |  |  |  | 13,334,754 |  |  |  | 11,261,032 |  |  |  | 8,817,502 |
Less: Stock and Option Award Values Reported in SCT for the Covered Year on Grant Date ($) |  |  | (10,198,671 | ) |  |  | (7,172,549 | ) |  |  | (9,901,690 | ) |  |  | (8,148,621 | ) |  |  | (6,589,999 | )
Plus: Fair Value for Stock and Option Awards Granted in the Covered Year at Year-End ($) |  |  | 9,276,084 |  |  |  | 13,925,505 |  |  |  | 7,855,626 |  |  |  | 7,606,781 |  |  |  | 5,869,529 |
Change in Fair Value of Outstanding Unvested Stock and Option Awards from Prior Years ($) |  |  | 6,726,551 |  |  |  | 20,039,610 |  |  |  | (11,218,937 | ) |  |  | (1,005,888 | ) |  |  | (819,975 | )
Change in Fair Value of Stock and Option Awards from Prior Years that Vested in the Covered Year ($) |  |  | 7,531,487 |  |  |  | (4,763,952 | ) |  |  | (4,864,514 | ) |  |  | (1,656,336 | ) |  |  | (1,498,653 | )
Less: Fair Value of Stock and Option Awards Forfeited during the Covered Year ($) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (205,355 | ) |  |  | (982,288 | )
Compensation Actually Paid ($) |  |  | 26,154,495 |  |  |  | 32,023,793 |  |  |  | (4,794,761 | ) |  |  | 7,851,613 |  |  |  | 4,796,116 |
Proxy Summary |  | Proposal 1 |  | Corporate Governance |  | Executive Officers |  | Executive Compensation |  | Security Ownership |  | Proposal 2 |  | Proposal 3 |  | Other Compensation Disclosures |  | Q&A About Voting |  | Other Matters
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ● |  |  |  |
Equity Valuations: For performance restricted stock unit awards, the grant date fair value of awards used for SCT calculations assumes target performance. To determine the year-end fair values used in the CAP calculations, we have updated the performance expectations to reflect the latest performance estimates for unvested and outstanding awards at each fiscal year-end date. For options awards, updated market input assumptions (stock price, risk free interest rate, volatility, expected term and future dividend yield expectations) have been used to determine the fair values of outstanding awards as of the identified vesting dates and the relevant fiscal year-end dates using the Black-Scholes option pricing model. Column (d) . The following non-CEO named executive officers are included in the average figures shown for 2022, 2021 and 2020: Brendan T. Cavanagh, Kurt L. Bagwell, Thomas P. Hunt and Jason V. Silberstein, for 2023: Brendan T. Cavanagh, Jason V. Silberstein, Mark R. Ciarfella, and Richard M. Cane, and for 2024: Marc Montagner, Mark R. Ciarfella, Richard M. Cane, Joshua M. Koenig and Jason V. Silverstein. Column (e) . Average CAP for our non-CEO NEOs in each of 2024, 2023, 2022, 2021, and 2020 reflects the respective amounts set forth in column (d), adjusted as set forth in the table below, as determined in accordance with SEC rules. The dollar amounts reflected in column (e) do not reflect the actual amount of compensation earned by or paid to our non-CEO NEOs during the applicable year. For information regarding the decisions made by our Compensation Committee with respect to the non-CEO NEOs’ compensation for each fiscal year, please see the “Compensation Discussion and Analysis” section of this proxy statement and the proxy statements for the 2024, 2023, 2022 and 2021 annual meetings of shareholders.
Year |  | 2020 |  |  | 2021 |  |  | 2022 |  |  | 2023 |  |  | 2024 |
Non-CEO NEOs |  | See column (d) note |  |  | See column (d) note |  |  | See column (d) note |  |  | See column (d) note |  |  | See column (d) note |
SCT Total Compensation ($) |  |  | 4,956,287 |  |  |  | 3,949,044 |  |  |  | 5,207,307 |  |  |  | 3,504,909 |  |  |  | 3,331,586 |
Less: Stock and Option Award Values Reported in SCT for the Covered Year on Grant Date ($) |  |  | (3,734,188 | ) |  |  | (2,585,499 | ) |  |  | (3,598,186 | ) |  |  | (2,283,870 | ) |  |  | (2,300,533 | )
Plus: Fair Value for Stock and Option Awards Granted in the Covered Year at Year-End ($) |  |  | 3,396,388 |  |  |  | 5,019,747 |  |  |  | 2,854,664 |  |  |  | 2,132,004 |  |  |  | 1,850,331 |
Change in Fair Value of Outstanding Unvested Stock and Option Awards from Prior Years ($) |  |  | 2,427,861 |  |  |  | 7,293,395 |  |  |  | (4,086,208 | ) |  |  | (233,781 | ) |  |  | (362,259 | )
Plus: Fair Value for Stock and Option Awards Granted and Vested in the Covered Year ($) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 13,605 |
Change in Fair Value of Stock and Option Awards from Prior Years that Vested in the Covered Year ($) |  |  | 2,704,234 |  |  |  | (1,714,834 | ) |  |  | (1,763,124 | ) |  |  | (376,014 | ) |  |  | (493,703 | )
Less: Fair Value of Stock and Option Awards Forfeited during the Covered Year ($) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (47,728 | ) |  |  | (318,787 | )
Compensation Actually Paid ($) |  |  | 9,750,582 |  |  |  | 11,961,853 |  |  |  | (1,385,547 | ) |  |  | 2,695,520 |  |  |  | 1,720,240 |
Equity Valuations: For performance restricted stock unit awards, the grant date fair value of awards used for SCT calculations assumes target performance. To determine the year-end fair values used in the CAP calculations, we have updated the performance expectations to reflect the latest performance estimates for unvested and outstanding awards at each fiscal year-end date. For options awards, updated market input assumptions (stock price, risk free interest rate, volatility, expected term and future dividend yield expectations) have been used to determine the fair values of outstanding awards as of the identified vesting dates and the relevant fiscal year-end dates using the Black-Scholes option pricing model. Column (f) . For the relevant fiscal year, represents the cumulative total shareholder return (TSR) of SBA for the measurement periods beginning on December 31, 2019 and ending on December 31 of each of 2024, 2023, 2022, 2021, and 2020 respectively. Column (g ). For the relevant fiscal year, represents the cumulative TSR of our Large Public Tower Company Peer Group for the measurement periods beginning on December 31, 2019 and ending on December 31 of each of 2024, 2023, 2022, 2021, and 2020 respectively. The Large Public Tower Company Peer Group for each of 2024, 2023, 2022, 2021, and 2020 consisted of the following companies: American Tower Corporation and Crown Castle Inc. Column (h) . Reflects “Net Income” in our consolidated income statements included in our Annual Reports on Form 10-K for each of the years ended December 31, 2024, 2023, 2022, 2021, and 2020. Column (i) . Company-selected Measure is AFFO per Share, which is described below. |  |  |  |
Company Selected Measure Name | AFFO per Share |  |  |  |
Named Executive Officers, Footnote | The following non-CEO named executive officers are included in the average figures shown for 2022, 2021 and 2020: Brendan T. Cavanagh, Kurt L. Bagwell, Thomas P. Hunt and Jason V. Silberstein, for 2023: Brendan T. Cavanagh, Jason V. Silberstein, Mark R. Ciarfella, and Richard M. Cane, and for 2024: Marc Montagner, Mark R. Ciarfella, Richard M. Cane, Joshua M. Koenig and Jason V. Silverstein. |  |  |  |
Peer Group Issuers, Footnote | Column (g ). For the relevant fiscal year, represents the cumulative TSR of our Large Public Tower Company Peer Group for the measurement periods beginning on December 31, 2019 and ending on December 31 of each of 2024, 2023, 2022, 2021, and 2020 respectively. The Large Public Tower Company Peer Group for each of 2024, 2023, 2022, 2021, and 2020 consisted of the following companies: American Tower Corporation and Crown Castle Inc. |  |  |  |
Adjustment To PEO Compensation, Footnote | Column (c) . CAP for our former CEO, Mr. Stoops, in each of 2020, 2021, 2022 and 2023 and our CEO, Mr. Cavanagh, in 2024 reflects the respective amounts set forth in column (b), adjusted as set forth in the table below, as determined in accordance with SEC rules. The dollar amounts reflected in column (c) do not reflect the actual amount of compensation earned by or paid to our former CEO during the applicable year. For information regarding decisions made by our Compensation Committee with respect to the former CEO’s compensation for each fiscal year, please see the “Compensation Discussion and Analysis” section of this proxy statement and the proxy statements for the 2024, 2023, 2022 and 2021 annual meetings of shareholders.
Year |  | 2020 |  |  | 2021 |  |  | 2022 |  |  | 2023 |  |  | 2024 |
CEO |  |  | Mr. Stoops |  |  |  | Mr. Stoops |  |  |  | Mr. Stoops |  |  |  | Mr. Stoops |  |  |  | Mr. Cavanagh |
SCT Total Compensation ($) |  |  | 12,819,044 |  |  |  | 9,995,179 |  |  |  | 13,334,754 |  |  |  | 11,261,032 |  |  |  | 8,817,502 |
Less: Stock and Option Award Values Reported in SCT for the Covered Year on Grant Date ($) |  |  | (10,198,671 | ) |  |  | (7,172,549 | ) |  |  | (9,901,690 | ) |  |  | (8,148,621 | ) |  |  | (6,589,999 | )
Plus: Fair Value for Stock and Option Awards Granted in the Covered Year at Year-End ($) |  |  | 9,276,084 |  |  |  | 13,925,505 |  |  |  | 7,855,626 |  |  |  | 7,606,781 |  |  |  | 5,869,529 |
Change in Fair Value of Outstanding Unvested Stock and Option Awards from Prior Years ($) |  |  | 6,726,551 |  |  |  | 20,039,610 |  |  |  | (11,218,937 | ) |  |  | (1,005,888 | ) |  |  | (819,975 | )
Change in Fair Value of Stock and Option Awards from Prior Years that Vested in the Covered Year ($) |  |  | 7,531,487 |  |  |  | (4,763,952 | ) |  |  | (4,864,514 | ) |  |  | (1,656,336 | ) |  |  | (1,498,653 | )
Less: Fair Value of Stock and Option Awards Forfeited during the Covered Year ($) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (205,355 | ) |  |  | (982,288 | )
Compensation Actually Paid ($) |  |  | 26,154,495 |  |  |  | 32,023,793 |  |  |  | (4,794,761 | ) |  |  | 7,851,613 |  |  |  | 4,796,116 |
Proxy Summary |  | Proposal 1 |  | Corporate Governance |  | Executive Officers |  | Executive Compensation |  | Security Ownership |  | Proposal 2 |  | Proposal 3 |  | Other Compensation Disclosures |  | Q&A About Voting |  | Other Matters
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ● |  |  |  |
Equity Valuations: For performance restricted stock unit awards, the grant date fair value of awards used for SCT calculations assumes target performance. To determine the year-end fair values used in the CAP calculations, we have updated the performance expectations to reflect the latest performance estimates for unvested and outstanding awards at each fiscal year-end date. For options awards, updated market input assumptions (stock price, risk free interest rate, volatility, expected term and future dividend yield expectations) have been used to determine the fair values of outstanding awards as of the identified vesting dates and the relevant fiscal year-end dates using the Black-Scholes option pricing model. |  |  |  |
Non-PEO NEO Average Total Compensation Amount | $ 3,331,586 | $ 3,504,909 | $ 5,207,307 | $ 3,949,044 | $ 4,956,287
Non-PEO NEO Average Compensation Actually Paid Amount | $ 1,720,240 | 2,695,520 | (1,385,547) | 11,961,853 | 9,750,582
Adjustment to Non-PEO NEO Compensation Footnote | Column (e) . Average CAP for our non-CEO NEOs in each of 2024, 2023, 2022, 2021, and 2020 reflects the respective amounts set forth in column (d), adjusted as set forth in the table below, as determined in accordance with SEC rules. The dollar amounts reflected in column (e) do not reflect the actual amount of compensation earned by or paid to our non-CEO NEOs during the applicable year. For information regarding the decisions made by our Compensation Committee with respect to the non-CEO NEOs’ compensation for each fiscal year, please see the “Compensation Discussion and Analysis” section of this proxy statement and the proxy statements for the 2024, 2023, 2022 and 2021 annual meetings of shareholders.
Year |  | 2020 |  |  | 2021 |  |  | 2022 |  |  | 2023 |  |  | 2024 |
Non-CEO NEOs |  | See column (d) note |  |  | See column (d) note |  |  | See column (d) note |  |  | See column (d) note |  |  | See column (d) note |
SCT Total Compensation ($) |  |  | 4,956,287 |  |  |  | 3,949,044 |  |  |  | 5,207,307 |  |  |  | 3,504,909 |  |  |  | 3,331,586 |
Less: Stock and Option Award Values Reported in SCT for the Covered Year on Grant Date ($) |  |  | (3,734,188 | ) |  |  | (2,585,499 | ) |  |  | (3,598,186 | ) |  |  | (2,283,870 | ) |  |  | (2,300,533 | )
Plus: Fair Value for Stock and Option Awards Granted in the Covered Year at Year-End ($) |  |  | 3,396,388 |  |  |  | 5,019,747 |  |  |  | 2,854,664 |  |  |  | 2,132,004 |  |  |  | 1,850,331 |
Change in Fair Value of Outstanding Unvested Stock and Option Awards from Prior Years ($) |  |  | 2,427,861 |  |  |  | 7,293,395 |  |  |  | (4,086,208 | ) |  |  | (233,781 | ) |  |  | (362,259 | )
Plus: Fair Value for Stock and Option Awards Granted and Vested in the Covered Year ($) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 13,605 |
Change in Fair Value of Stock and Option Awards from Prior Years that Vested in the Covered Year ($) |  |  | 2,704,234 |  |  |  | (1,714,834 | ) |  |  | (1,763,124 | ) |  |  | (376,014 | ) |  |  | (493,703 | )
Less: Fair Value of Stock and Option Awards Forfeited during the Covered Year ($) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (47,728 | ) |  |  | (318,787 | )
Compensation Actually Paid ($) |  |  | 9,750,582 |  |  |  | 11,961,853 |  |  |  | (1,385,547 | ) |  |  | 2,695,520 |  |  |  | 1,720,240 |
Equity Valuations: For performance restricted stock unit awards, the grant date fair value of awards used for SCT calculations assumes target performance. To determine the year-end fair values used in the CAP calculations, we have updated the performance expectations to reflect the latest performance estimates for unvested and outstanding awards at each fiscal year-end date. For options awards, updated market input assumptions (stock price, risk free interest rate, volatility, expected term and future dividend yield expectations) have been used to determine the fair values of outstanding awards as of the identified vesting dates and the relevant fiscal year-end dates using the Black-Scholes option pricing model. |  |  |  |
Compensation Actually Paid vs. Total Shareholder Return |  |  |  |  |
Compensation Actually Paid vs. Net Income |  |  |  |  |
Compensation Actually Paid vs. Company Selected Measure |  |  |  |  |
Total Shareholder Return Vs Peer Group |  |  |  |  |
Tabular List, Table | Listed below are the financial and non-financial performance measures which in our assessment represent the most important financial performance measures we used for 2024 to link CAP of our named executive officers to company performance.
Measure |  | Nature |  | Explanation
AFFO per Share |  | Financial measure |  | Non-GAAP financial measure calculated as AFFO (Adjusted Funds From Operations) divided by the weighted-average number of common shares outstanding, adjusted to include the dilutive effect of stock options and restricted stock units. AFFO is defined as net income (loss) plus real estate related depreciation, amortization and accretion, asset impairment and decommission costs, and adjustments for unconsolidated joint ventures, adjusted to remove the impact of non-cash straight-line leasing revenue, non-cash straight-line ground lease expense, non-cash compensation, changes in the non-cash portion of our reported tax position, non-real estate related depreciation, amortization and accretion, amortization of deferred financing costs and debt discounts, loss from extinguishment of debt, net, other (income) and expense, acquisition and new business initiatives related adjustments and expenses, non-discretionary cash capital expenditures, and adjustments for unconsolidated joint ventures.
Adjusted EBITDA |  | Financial measure |  | Non-GAAP financial measure defined as net income (loss) excluding the impact of interest expense, interest income, provision for or benefit from taxes, depreciation, accretion and amortization, asset impairment and decommission costs, non-cash compensation, loss from extinguishment of debt, net, other (income) and expense, acquisition and new business initiatives related adjustments and expenses, non-cash straight-line leasing revenue, and non-cash straight-line ground lease expense. Adjusted EBITDA excludes acquisition related costs which, pursuant to the adoption of new business combination accounting guidance, are expensed and included within operating expenses.
Relative TSR |  | Financial measure |  | SBA’s TSR performance against the S&P 500 over a three-year period.
ROIC |  | Financial measure |  | Non-GAAP financial measure calculated as Adjusted EBITDA minus cash taxes divided by the sum of (i) Gross Property and Equipment and (ii) Gross Intangibles.
Site Leasing Revenue |  | Financial Measure |  | Site Leasing Revenue is a GAAP financial measure. We use Site Leasing Revenue because it is a useful indicator of the performance of our site leasing operations which has consistently represented approximately 90% of our total revenue for the past five years.
Total Shareholder Return Amount | $ 89.44 | 109.31 | 119.01 | 163.7 | 117.81
Peer Group Total Shareholder Return Amount | 86.78 | 100.41 | 100.87 | 140.99 | 105.39
Net Income (Loss) | $ 749,536,000 | $ 501,812,000 | $ 461,429,000 | $ 237,624,000 | $ 24,104,000
Company Selected Measure Amount | 13.37 | 13.08 | 12.25 | 10.74 | 9.43
Measure:: 1 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | AFFO per Share |  |  |  |
Non-GAAP Measure Description | Non-GAAP financial measure calculated as AFFO (Adjusted Funds From Operations) divided by the weighted-average number of common shares outstanding, adjusted to include the dilutive effect of stock options and restricted stock units. AFFO is defined as net income (loss) plus real estate related depreciation, amortization and accretion, asset impairment and decommission costs, and adjustments for unconsolidated joint ventures, adjusted to remove the impact of non-cash straight-line leasing revenue, non-cash straight-line ground lease expense, non-cash compensation, changes in the non-cash portion of our reported tax position, non-real estate related depreciation, amortization and accretion, amortization of deferred financing costs and debt discounts, loss from extinguishment of debt, net, other (income) and expense, acquisition and new business initiatives related adjustments and expenses, non-discretionary cash capital expenditures, and adjustments for unconsolidated joint ventures. |  |  |  |
Measure:: 2 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Adjusted EBITDA |  |  |  |
Measure:: 3 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Relative TSR |  |  |  |
Measure:: 4 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | ROIC |  |  |  |
Measure:: 5 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Site Leasing Revenue |  |  |  |
Jeffrey A. Stoops [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
PEO Total Compensation Amount |  | $ 11,261,032 | $ 13,334,754 | $ 9,995,179 | $ 12,819,044
PEO Actually Paid Compensation Amount |  | $ 7,851,613 | $ (4,794,761) | $ 32,023,793 | $ 26,154,495
PEO Name |  | Jeffrey A. Stoops | Jeffrey A. Stoops | Jeffrey A. Stoops | Jeffrey A. Stoops
Brendan T. Cavanagh [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
PEO Total Compensation Amount | $ 8,817,502 |  |  |  |
PEO Actually Paid Compensation Amount | $ 4,796,116 |  |  |  |
PEO Name | Brendan T. Cavanagh |  |  |  |
PEO | Jeffrey A. Stoops [Member] | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  | $ (1,005,888) | $ (11,218,937) | $ 20,039,610 | $ 6,726,551
PEO | Jeffrey A. Stoops [Member] | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  | (1,656,336) | (4,864,514) | (4,763,952) | 7,531,487
PEO | Jeffrey A. Stoops [Member] | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  | (205,355) |  |  |
PEO | Jeffrey A. Stoops [Member] | Stock And Option Award Values Reported In SCT For The Covered Year On Grant Date [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  | (8,148,621) | (9,901,690) | (7,172,549) | (10,198,671)
PEO | Jeffrey A. Stoops [Member] | Fair Value For Stock And Option Awards Granted In The Covered Year At Year End [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  | 7,606,781 | 7,855,626 | 13,925,505 | 9,276,084
PEO | Brendan T. Cavanagh [Member] | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | $ (819,975) |  |  |  |
PEO | Brendan T. Cavanagh [Member] | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (1,498,653) |  |  |  |
PEO | Brendan T. Cavanagh [Member] | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (982,288) |  |  |  |
PEO | Brendan T. Cavanagh [Member] | Stock And Option Award Values Reported In SCT For The Covered Year On Grant Date [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (6,589,999) |  |  |  |
PEO | Brendan T. Cavanagh [Member] | Fair Value For Stock And Option Awards Granted In The Covered Year At Year End [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 5,869,529 |  |  |  |
Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (362,259) | (233,781) | (4,086,208) | 7,293,395 | 2,427,861
Non-PEO NEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 13,605 |  |  |  |
Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (493,703) | (376,014) | (1,763,124) | (1,714,834) | 2,704,234
Non-PEO NEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (318,787) | (47,728) |  |  |
Non-PEO NEO | Stock And Option Award Values Reported In SCT For The Covered Year On Grant Date [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (2,300,533) | (2,283,870) | (3,598,186) | (2,585,499) | (3,734,188)
Non-PEO NEO | Fair Value For Stock And Option Awards Granted In The Covered Year At Year End [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | $ 1,850,331 | $ 2,132,004 | $ 2,854,664 | $ 5,019,747 | $ 3,396,388

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToNonPeoNeoCompFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToPeoCompFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_CoSelectedMeasureAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_CoSelectedMeasureName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph iii + Details
Name: | ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph ii + Details
Name: | ecd_CompActuallyPaidVsNetIncomeTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph i + Details
Name: | ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_MeasureName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_NamedExecutiveOfficersFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_NonGaapMeasureDescriptionTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iii + Details
Name: | ecd_NonPeoNeoAvgCompActuallyPaidAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph ii + Details
Name: | ecd_NonPeoNeoAvgTotalCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_PeerGroupIssuersFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_PeerGroupTotalShareholderRtnAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iii + Details
Name: | ecd_PeoActuallyPaidCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_PeoName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph ii + Details
Name: | ecd_PeoTotalCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 1 + Details
Name: | ecd_PvpTable
Namespace Prefix: | ecd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 1 + Details
Name: | ecd_PvpTableTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 6 + Details
Name: | ecd_TabularListTableTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_TotalShareholderRtnAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph iv + Details
Name: | ecd_TotalShareholderRtnVsPeerGroupTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-9 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 60 -Name Accounting Standards Codification -Section 65 -Paragraph 1 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476176/805-60-65-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 323 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478666/740-323-65-2 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 28 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-28 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482765/220-10-50-6 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-3 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-1 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480175/815-40-65-1 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-8 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-11 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-11 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-4 Reference 17: http://www.xbrl.org/2003/role/exampleRef -Topic 946 -SubTopic 830 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479168/946-830-55-10 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section 45 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479105/946-220-45-7 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(9)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1 Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-09(1)(d)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3 Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(i)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 23: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iii)(A)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 25: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iv)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 26: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 27: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(i)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 28: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(A)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 29: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(B)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 30: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iv)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 31: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 32: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 60B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482689/260-10-45-60B Reference 33: http://www.xbrl.org/2003/role/disclosureRef -Topic 205 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483499/205-20-50-7 Reference 34: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 35: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1A Reference 36: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1B Reference 37: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 + Details
Name: | us-gaap_NetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ecd_MeasureAxis=1
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=2
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=3
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=4
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=5
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_IndividualAxis=sbac_JeffreyAStoopsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_IndividualAxis=sbac_BrendanTCavanaghMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_ExecutiveCategoryAxis=ecd_PeoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=sbac_StockAndOptionAwardValuesReportedInSctForTheCoveredYearOnGrantDateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=sbac_FairValueForStockAndOptionAwardsGrantedInTheCoveredYearAtYearEndMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_ExecutiveCategoryAxis=ecd_NonPeoNeoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |