Debt	12 Months Ended
	Dec. 31, 2021
Debt [Abstract]
Debt	11.DEBTThe principal values, fair values, and carrying values of debt consist of the following (in thousands): As of As of December 31, 2021 December 31, 2020 Maturity Date Principal ‎Balance Fair Value Carrying ‎Value Principal ‎Balance Fair Value Carrying ‎ValueRevolving Credit Facility Jul. 7, 2026 $ 350,000  $ 350,000  $ 350,000  $ 380,000  $ 380,000  $ 380,000 2018 Term Loan Apr. 11, 2025 2,316,000  2,289,945  2,304,697  2,340,000  2,310,750  2,325,391 2013-2C Tower Securities (1) Apr. 11, 2023 — — — 575,000  599,662  572,063 2014-2C Tower Securities (1) Oct. 8, 2024 620,000  641,793  617,095  620,000  670,003  616,131 2017-1C Tower Securities (1) Apr. 11, 2022 — — — 760,000  774,410  757,165 2018-1C Tower Securities (1) Mar. 9, 2023 640,000  650,163  637,812  640,000  671,341  636,045 2019-1C Tower Securities (1) Jan. 12, 2025 1,165,000  1,174,728  1,157,446  1,165,000  1,218,613  1,155,106 2020-1C Tower Securities (1) Jan. 9, 2026 750,000  746,498  744,052  750,000  752,910  742,782 2020-2C Tower Securities (1) Jan. 11, 2028 600,000  605,268  594,774  600,000  597,840  594,081 2021-1C Tower Securities (1) Nov. 9, 2026 1,165,000  1,144,846  1,153,700  — — —2021-2C Tower Securities (1) Apr. 9, 2027 895,000  883,213  886,116  — — —2021-3C Tower Securities (1) Oct. 9, 2031 895,000  902,446  885,976  — — —2016 Senior Notes Sep. 1, 2024 — — — 1,100,000  1,127,500  1,088,924 2017 Senior Notes Oct. 1, 2022 — — — 750,000  757,500  746,642 2020 Senior Notes Feb. 15, 2027 1,500,000  1,550,790  1,484,178  1,500,000  1,567,500  1,481,466 2021 Senior Notes Feb. 1, 2029 1,500,000  1,446,975  1,486,848  — — —Total debt $ 12,396,000  $ 12,386,665  $ 12,302,694  $ 11,180,000  $ 11,428,029  $ 11,095,796 Less: current maturities of long-term debt (24,000) (24,000)Total long-term debt, net of current maturities $ 12,278,694  $ 11,071,796  (1)The maturity date represents the anticipated repayment date for each issuance. The Company’s future principal payment obligations over the next five years (based on the outstanding debt as of December 31, 2021 and assuming the Tower Securities are repaid at their respective anticipated repayment dates) are as follows: For the year ended December 31, (in thousands)2022 $ 24,0002023 664,0002024 644,0002025 3,409,0002026 2,265,000 The table below reflects cash and non-cash interest expense amounts recognized by debt instrument for the periods presented: For the year ended December 31, Interest 2021 2020 2019 Rates as of Cash Non-cash Cash Non-cash Cash Non-cash December 31, 2021 Interest Interest Interest Interest Interest Interest (in thousands)Revolving Credit Facility 1.516% $ 6,414  $ — $ 6,070  $ — $ 7,085  $ —2018 Term Loan (1) 1.872% 44,342  45,756  68,963  23,452  105,021  1,338 2013-2C Tower Securities 3.722% 17,027  — 21,584  — 21,584  —2014 Tower Securities (2) 3.869% 24,185  — 24,185  — 43,055  —2015-1C Tower Securities 3.156% — — 8,589  — 15,939  —2016-1C Tower Securities 2.877% — — 10,972  — 20,361  —2017-1C Tower Securities 3.168% 9,201  — 24,354  — 24,354  —2018-1C Tower Securities 3.448% 22,281  — 22,281  — 22,281  —2019-1C Tower Securities 2.836% 33,428  — 33,428  — 10,029  —2020-1C Tower Securities 1.884% 14,391  — 6,675  — — —2020-2C Tower Securities 2.328% 14,159  — 6,568  — — —2021-1C Tower Securities 1.631% 12,255  — — — — —2021-2C Tower Securities 1.840% 2,982  — — — — —2021-3C Tower Securities 2.593% 4,176  — — — — —2014 Senior Notes 4.875% — — 3,352  112  36,563  800 2016 Senior Notes 4.875% 44,092  990  53,625  1,109  53,625  1,055 2017 Senior Notes 4.000% 2,333  — 30,000  — 30,000  —2020 Senior Notes 3.875% 58,125  339  46,769  197  — —2021 Senior Notes 3.125% 43,229  — — — — —Capitalized interest and other 299  — 459  — 139  —Total $ 352,919  $ 47,085  $ 367,874  $ 24,870  $ 390,036  $ 3,193  (1)The 2018 Term Loan has a blended rate of 1.872% which includes the impact of the interest rate swap entered into on August 4, 2020 which swapped $1.95 billion of notional value accruing interest at one month LIBOR plus 175 basis points for a fixed rate of 1.874% per annum through the maturity date of the 2018 Term Loan. Excluding the impact of the interest rate swap, the 2018 Term Loan was accruing interest at 1.860% as of December 31, 2021. Refer to Note 21 for more information on the Company’s interest rate swap.(2)The 2014-1C Tower Securities, which was repaid September 13, 2019, accrued interest at 2.898%. The 2014-2C Tower Securities accrue interest at 3.869%.Terms of the Senior Credit AgreementOn July 7, 2021, the Company, through its wholly owned subsidiary, SBA Senior Finance II LLC, amended its Revolving Credit Facility to (1) increase the total commitments under the Facility from $1.25 billion to $1.5 billion, (2) extend the maturity date of the Facility to July 7, 2026, (3) lower the applicable interest rate margins and commitment fees under the Facility, (4) provide mechanics relating to a transition away from LIBOR as a benchmark interest rate and the replacement of LIBOR by an alternative benchmark rate, (5) incorporate sustainability-linked targets which will adjust the Facility’s applicable interest and commitment fee rates upward or downward based on how the Company performs against those targets, and (6) amend certain other terms and conditions under the Senior Credit Agreement.The Senior Credit Agreement, as amended, requires SBA Senior Finance II to maintain specific financial ratios, including (1) a ratio of Consolidated Net Debt to Annualized Borrower EBITDA not to exceed 6.5 times for any fiscal quarter, (2) a ratio of Consolidated Net Debt (calculated in accordance with the Senior Credit Agreement) to Annualized Borrower EBITDA for the most recently ended fiscal quarter not to exceed 6.5 times for 30 consecutive days and (3) a ratio of Annualized Borrower EBITDA to Annualized Cash Interest Expense (calculated in accordance with the Senior Credit Agreement) of not less than 2.0 times for any fiscal quarter. The Senior Credit Agreement contains customary affirmative and negative covenants that, among other things, limit the ability of SBA Senior Finance II and its subsidiaries to incur indebtedness, grant certain liens, make certain investments, enter into sale leaseback transactions, merge or consolidate, make certain restricted payments, enter into transactions with affiliates, and engage in certain asset dispositions, including a sale of all or substantially all of their property. The Senior Credit Agreement is also subject to customary events of default. Pursuant to the Second Amended and Restated Guarantee and Collateral Agreement, amounts borrowed under the Revolving Credit Facility, the Term Loans and certain hedging transactions that may be entered into by SBA Senior Finance II or the Subsidiary Guarantors (as defined in the Senior Credit Agreement) with lenders or their affiliates are secured by a first lien on the membership interests of SBA Telecommunications, LLC, SBA Senior Finance, LLC and SBA Senior Finance II and on substantially all of the assets (other than leasehold, easement and fee interests in real property) of SBA Senior Finance II and the Subsidiary Guarantors.The Senior Credit Agreement, as amended, permits SBA Senior Finance II, without the consent of the other lenders, to request that one or more lenders provide SBA Senior Finance II with increases in the Revolving Credit Facility or additional term loans provided that after giving effect to the proposed increase in Revolving Credit Facility commitments or incremental term loans the ratio of Consolidated Net Debt to Annualized Borrower EBITDA would not exceed 6.5 times. SBA Senior Finance II’s ability to request such increases in the Revolving Credit Facility or additional term loans is subject to its compliance with customary conditions set forth in the Senior Credit Agreement including compliance, on a pro forma basis, with the financial covenants and ratios set forth therein and, with respect to any additional term loan, an increase in the margin on existing term loans to the extent required by the terms of the Senior Credit Agreement. Upon SBA Senior Finance II’s request, each lender may decide, in its sole discretion, whether to increase all or a portion of its Revolving Credit Facility commitment or whether to provide SBA Senior Finance II with additional term loans and, if so, upon what terms.Revolving Credit Facility under the Senior Credit AgreementAs amended, the Revolving Credit Facility consists of a revolving loan under which up to $1.5 billion aggregate principal amount may be borrowed, repaid and redrawn, based upon specific financial ratios and subject to the satisfaction of other customary conditions to borrowing. Amounts borrowed under the Revolving Credit Facility accrue interest, at SBA Senior Finance II’s election, at either (1) the Eurodollar Rate plus a margin that ranges from 112.5 basis points to 150.0 basis points or (2) the Base Rate plus a margin that ranges from 12.5 basis points to 50.0 basis points, in each case based on the ratio of Consolidated Net Debt to Annualized Borrower EBITDA, calculated in accordance with the Senior Credit Agreement. In addition, SBA Senior Finance II is required to pay a commitment fee of between 0.15% and 0.25% per annum on the amount of unused commitment. Borrowings under the Revolving Credit Facility may be used for general corporate purposes. SBA Senior Finance II may, from time to time, borrow from and repay the Revolving Credit Facility. Consequently, the amount outstanding under the Revolving Credit Facility at the end of the period may not be reflective of the total amounts outstanding during such period.During the year ended December 31, 2021, the Company borrowed $1.9 billion and repaid $2.0 billion of the outstanding balance under the Revolving Credit Facility. As of December 31, 2021, the balance outstanding under the Revolving Credit Facility was $350.0 million accruing interest at 1.516% per annum. In addition, SBA Senior Finance II was required to pay a commitment fee of 0.15% per annum on the amount of the unused commitment. As of December 31, 2021, SBA Senior Finance II was in compliance with the financial covenants contained in the Senior Credit Agreement.Subsequent to December 31, 2021, the Company borrowed an additional $210.0 million under the Revolving Credit Facility, and as of the date of this filing, $560.0 million was outstanding.Term Loan under the Senior Credit Agreement2018 Term LoanOn April 11, 2018, the Company, through its wholly owned subsidiary, SBA Senior Finance II LLC, obtained a term loan (the “2018 Term Loan”) under the amended and restated Senior Credit Agreement. The 2018 Term Loan consists of a senior secured term loan with an initial aggregate principal amount of $2.4 billion that matures on April 11, 2025. The 2018 Term Loan accrues interest, at SBA Senior Finance II’s election at either the Base Rate plus 75 basis points (with a zero Base Rate floor) or the Eurodollar Rate plus 175 basis points (with a zero Eurodollar Rate floor). The 2018 Term Loan was issued at 99.75% of par value. As of December 31, 2021, the 2018 Term Loan was accruing interest at 1.860% per annum. Principal payments on the 2018 Term Loan are made in quarterly installments on the last day of each March, June, September, and December in an amount equal to $6.0 million. The Company incurred financing fees of approximately $16.8 million in relation to this transaction, which are being amortized through the maturity date.During the year ended December 31, 2021, the Company repaid an aggregate of $24.0 million of principal on the 2018 Term Loan. As of December 31, 2021, the 2018 Term Loan had a principal balance of $2.3 billion.On August 4, 2020, the Company, through its wholly owned subsidiary, SBA Senior Finance II, entered into an interest rate swap for $1.95 billion of notional value accruing interest at one month LIBOR plus 175 basis points for a fixed rate of 1.874% per annum through the maturity date of the 2018 Term Loan.Secured Tower Revenue SecuritiesTower Revenue Securities TermsThe mortgage loan underlying the 2014-2C Tower Securities, 2018-1C Tower Securities, 2019-1C Tower Securities, 2020-1C Tower Securities, 2020-2C Tower Securities, 2021-1C Tower Securities, 2021-2C Tower Securities, and 2021-3C Tower Securities (together the “Tower Securities”) will be paid from the operating cash flows from the aggregate 9,902 tower sites owned by the Borrowers. The sole asset of the Trust consists of a non-recourse mortgage loan made in favor of those entities that are borrowers on the mortgage loan (the “Borrowers”). The mortgage loan is secured by (1) mortgages, deeds of trust, and deeds to secure debt on a substantial portion of the tower sites, (2) a security interest in the tower sites and substantially all of the Borrowers’ personal property and fixtures, (3) the Borrowers’ rights under certain tenant leases, and (4) all of the proceeds of the foregoing. For each calendar month, SBA Network Management, Inc., an indirect subsidiary (“Network Management”), is entitled to receive a management fee equal to 4.5% of the Borrowers’ operating revenues for the immediately preceding calendar month.The Borrowers may prepay any of the mortgage loan components, in whole or in part, with no prepayment consideration, (1) within twelve months (in the case of the component corresponding to the Secured Tower Revenue Securities Series 2018-1C, Secured Tower Revenue Securities Series 2019-1C, Secured Tower Revenue Securities Series 2020-1C, Secured Tower Revenue Securities Series 2021-1C, and Secured Tower Revenue Securities Series 2021-2C) or eighteen months (in the case of the components corresponding to the Secured Tower Revenue Securities Series 2014-2C, Secured Tower Revenue Securities Series 2020-2C, and Secured Tower Revenue Securities Series 2021-3C)) of the anticipated repayment date of such mortgage loan component, (2) with proceeds received as a result of any condemnation or casualty of any tower owned by the Borrowers or (3) during an amortization period. In all other circumstances, the Borrowers may prepay the mortgage loan, in whole or in part, upon payment of the applicable prepayment consideration. The prepayment consideration is determined based on the class of the Tower Securities to which the prepaid mortgage loan component corresponds and consists of an amount equal to the excess, if any, of (1) the present value associated with the portion of the principal balance being prepaid, calculated in accordance with the formula set forth in the mortgage loan agreement, on the date of prepayment of all future installments of principal and interest required to be paid from the date of prepayment to and including the first due date within twelve months (in the case of the component corresponding to the Secured Tower Revenue Securities Series 2018-1C, Secured Tower Revenue Securities Series 2019-1C, Secured Tower Revenue Securities Series 2020-1C, Secured Tower Revenue Securities Series 2021-1C, and Secured Tower Revenue Securities Series 2021-2C) or eighteen months (in the case of the components corresponding to the Secured Tower Revenue Securities Series 2014-2C, Secured Tower Revenue Securities Series 2020-2C, and Secured Tower Revenue Securities Series 2021-3C) of the anticipated repayment date of such mortgage loan component over (2) that portion of the principal balance of such class prepaid on the date of such prepayment.To the extent that the mortgage loan components corresponding to the Tower Securities are not fully repaid by their respective anticipated repayment dates, the interest rate of each such component will increase by the greater of (1) 5% and (2) the amount, if any, by which the sum of (x) the 10 year U.S. treasury rate plus (y) the credit-based spread for such component (as set forth in the mortgage loan agreement) plus (z) 5%, exceeds the original interest rate for such component.Pursuant to the terms of the Tower Securities, all rents and other sums due on any of the towers owned by the Borrowers are directly deposited by the lessees into a controlled deposit account and are held by the indenture trustee. The monies held by the indenture trustee after the release date are classified as short-term restricted cash on the Consolidated Balance Sheets (see Note 4). However, if the Debt Service Coverage Ratio, defined as the net cash flow (as defined in the mortgage loan agreement) divided by the amount of interest on the mortgage loan, servicing fees and trustee fees that the Borrowers are required to pay over the succeeding twelve months, as of the end of any calendar quarter, falls to 1.30x or lower, then all cash flow in excess of amounts required to make debt service payments, to fund required reserves, to pay management fees and budgeted operating expenses and to make other payments required under the loan documents, referred to as “excess cash flow,” will be deposited into a reserve account instead of being released to the Borrowers. The funds in the reserve account will not be released to the Borrowers unless the Debt Service Coverage Ratio exceeds 1.30x for two consecutive calendar quarters. If the Debt Service Coverage Ratio falls below 1.15x as of the end of any calendar quarter, then an “amortization period” will commence and all funds on deposit in the reserve account will be applied to prepay the mortgage loan until such time that the Debt Service Coverage Ratio exceeds 1.15x for a calendar quarter. In addition, if any of the Tower Securities are not fully repaid by their respective anticipated repayment dates, the cash flow from the towers owned by the Borrowers will be trapped by the trustee for the Tower Securities and applied first to repay the interest, at the original interest rates, on the mortgage loan components underlying the Tower Securities, second to fund all reserve accounts and operating expenses associated with those towers, third to pay the management fees due to Network Management, fourth to repay principal of the Tower Securities and fifth to repay the additional interest discussed above. Furthermore, the advance rents reserve requirement states that the Borrowers are required to maintain an advance rents reserve at any time the monthly tenant Debt Service Coverage Ratio is equal to or less than 2:1 and for two calendar months after such coverage ratio again exceeds 2:1. The mortgage loan agreement, as amended, also includes covenants customary for mortgage loans subject to rated securitizations. Among other things, the Borrowers are prohibited from incurring other indebtedness for borrowed money or further encumbering their assets.2013-2C Tower SecuritiesOn April 18, 2013, the Company, through a New York common law trust (the “Trust”), issued $575.0 million of Secured Tower Revenue Securities Series 2013-2C, which had an anticipated repayment date of April 11, 2023 and a final maturity date of April 9, 2048 (the “2013-2C Tower Securities”). The fixed interest rate of the 2013-2C Tower Securities was 3.722% per annum, payable monthly. The Company incurred financing fees of $11.0 million in relation to this transaction, which were being amortized through the anticipated repayment date of the 2013-2C Tower Securities.On October 14, 2021, the Company repaid the entire aggregate principal amount of the 2013-2C Tower Securities ($575.0 million) which had an anticipated repayment date of April 11, 2023 using proceeds from the Revolving Credit Facility. Additionally, the Company expensed $2.0 million of deferred financing fees and accrued interest related to the repayment of the 2013-2C Tower Securities, which are reflected in loss from extinguishment of debt on the Consolidated Statement of Operations.2014 Tower SecuritiesOn October 15, 2014, the Company, through the Trust, issued $920.0 million of 2.898% Secured Tower Revenue Securities Series 2014-1C, which had an anticipated repayment date of October 8, 2019 and a final maturity date of October 11, 2044 (the “2014-1C Tower Securities”) and $620.0 million of 3.869% Secured Tower Revenue Securities Series 2014-2C, which have an anticipated repayment date of October 8, 2024 and a final maturity date of October 8, 2049 (the “2014-2C Tower Securities”) (collectively the “2014 Tower Securities”). The Company incurred financing fees of $9.0 million in relation to the 2014-2C Tower Securities, which are being amortized through the anticipated repayment date of the 2014-2C Tower Securities.On September 13, 2019, the Company repaid the entire aggregate principal amount of the 2014-1C Tower Securities in connection with the issuance of the 2019-1C Tower Securities (as defined below). Additionally, the Company expensed $0.4 million of deferred financing fees and accrued interest related to the redemption of the 2014-1C Tower Securities, which are reflected in loss from extinguishment of debt on the Consolidated Statement of Operations.2015-1C Tower Securities On October 14, 2015, the Company, through the Trust, issued $500.0 million of Secured Tower Revenue Securities Series 2015-1C, which had an anticipated repayment date of October 8, 2020 and a final maturity date of October 10, 2045 (the “2015-1C Tower Securities”). The fixed interest rate of the 2015-1C Tower Securities was 3.156% per annum, payable monthly. The Company incurred financing fees of $11.5 million in relation to this transaction, which were being amortized through the anticipated repayment date of the 2015-1C Tower Securities.On July 14, 2020, the Company repaid the entire aggregate principal amount of the 2015-1C Tower Securities in connection with the issuance of the 2020 Tower Securities (as defined below). Additionally, the Company expensed $0.6 million of deferred financing fees and accrued interest related to the redemption of the 2015-1C Tower Securities, which are reflected in loss from extinguishment of debt on the Consolidated Statement of Operations.2016-1C Tower SecuritiesOn July 7, 2016, the Company, through the Trust, issued $700.0 million of Secured Tower Revenue Securities Series 2016-1C, which had an anticipated repayment date of July 9, 2021 and a final maturity date of July 10, 2046 (the “2016-1C Tower Securities”). The fixed interest rate of the 2016-1C Tower Securities was 2.877% per annum, payable monthly. The Company incurred financing fees of $9.5 million in relation to this transaction, which were being amortized through the anticipated repayment date of the 2016-1C Tower Securities.On July 14, 2020, the Company repaid the entire aggregate principal amount of the 2016-1C Tower Securities in connection with the issuance of the 2020 Tower Securities (as defined below). Additionally, the Company expensed $2.0 million of deferred financing fees and accrued interest related to the redemption of the 2016-1C Tower Securities, which are reflected in loss from extinguishment of debt on the Consolidated Statement of Operations.2017-1C Tower SecuritiesOn April 17, 2017, the Company, through the Trust, issued $760.0 million of Secured Tower Revenue Securities Series 2017-1C, which had an anticipated repayment date of April 11, 2022 and a final maturity date of April 9, 2047 (the “2017-1C Tower Securities”). The fixed interest rate on the 2017-1C Tower Securities was 3.168% per annum, payable monthly. The Company incurred financing fees of $10.2 million in relation to this transaction, which were being amortized through the anticipated repayment date of the 2017-1C Tower Securities.In addition, to satisfy certain risk retention requirements of Regulation RR promulgated under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), SBA Guarantor, LLC, a wholly owned subsidiary, purchased $40.0 million of Secured Tower Revenue Securities Series 2017-1R issued by the Trust, which had an anticipated repayment date of April 11, 2022 and a final maturity date of April 9, 2047 (the “2017-1R Tower Securities”). The fixed interest rate on the 2017-1R Tower Securities was 4.459% per annum, payable monthly. Principal and interest payments made on the 2017-1R Tower Securities eliminated in consolidation. On May 14, 2021, the Company repaid the entire aggregate principal amount of the 2017-1C Tower Securities and the 2017-1R Tower Securities in connection with the issuance of the 2021-1C Tower Securities (as defined below). Additionally, the Company expensed $2.0 million of deferred financing fees related to the redemption of the 2017-1C Tower Securities, which are reflected in loss from extinguishment of debt on the Consolidated Statement of Operations.2018-1C Tower SecuritiesOn March 9, 2018, the Company, through the Trust, issued $640.0 million of Secured Tower Revenue Securities Series 2018-1C, which have an anticipated repayment date of March 9, 2023 and a final maturity date of March 9, 2048 (the “2018-1C Tower Securities”). The fixed interest rate on the 2018-1C Tower Securities is 3.448% per annum, payable monthly. The Company incurred financing fees of $8.6 million in relation to this transaction, which are being amortized through the anticipated repayment date of the 2018-1C Tower Securities.In addition, to satisfy certain risk retention requirements of Regulation RR promulgated under the Exchange Act, SBA Guarantor, LLC, a wholly owned subsidiary, purchased $33.7 million of Secured Tower Revenue Securities Series 2018-1R issued by the Trust. These securities have an anticipated repayment date of March 9, 2023 and a final maturity date of March 9, 2048 (the “2018-1R Tower Securities”). The fixed interest rate on the 2018-1R Tower Securities is 4.949% per annum, payable monthly. Principal and interest payments made on the 2018-1R Tower Securities eliminate in consolidation.2019-1C Tower SecuritiesOn September 13, 2019, the Company, through the Trust, issued $1.165 billion of Secured Tower Revenue Securities Series 2019-1C, which have an anticipated repayment date of January 12, 2025 and a final maturity date of January 12, 2050 (the “2019-1C Tower Securities”). The fixed interest rate on the 2019-1C Tower Securities is 2.836% per annum, payable monthly. The Company incurred financing fees of $12.8 million in relation to this transaction, which are being amortized through the anticipated repayment date of the 2019-1C Tower Securities.In addition, to satisfy certain risk retention requirements of Regulation RR promulgated under the Exchange Act, SBA Guarantor, LLC, a wholly owned subsidiary, purchased $61.4 million of Secured Tower Revenue Securities Series 2019-1R issued by the Trust. These securities have an anticipated repayment date of January 12, 2025 and a final maturity date of January 12, 2050 (the “2019-1R Tower Securities”). The fixed interest rate on the 2019-1R Tower Securities is 4.213% per annum, payable monthly. Principal and interest payments made on the 2019-1R Tower Securities eliminate in consolidation. 2020 Tower SecuritiesOn July 14, 2020, the Company, through the Trust, issued $750.0 million of 1.884% Secured Tower Revenue Securities Series 2020-1C which have an anticipated repayment date of January 9, 2026 and a final maturity date of July 11, 2050 (the “2020-1C Tower Securities”) and $600.0 million of 2.328% Secured Tower Revenue Securities Series 2020-2C which have an anticipated repayment date of January 11, 2028 and a final maturity date of July 9, 2052 (the “2020-2C Tower Securities”) (collectively the “2020 Tower Securities”). The aggregate $1.35 billion of 2020 Tower Securities have a blended interest rate of 2.081% and a weighted average life through the anticipated repayment date of 6.4 years. Net proceeds from this offering were used to repay the entire aggregate principal amount of the 2015-1C Tower Securities ($500.0 million) and the 2016-1C Tower Securities ($700.0 million). The remaining net proceeds of the 2020 Tower Securities were used for general corporate purposes. The Company has incurred deferred financing fees of $14.3 million in relation to this transaction which are being amortized through the anticipated repayment date of the 2020 Tower Securities.In addition, to satisfy certain risk retention requirements of Regulation RR promulgated under the Exchange Act, SBA Guarantor, LLC, a wholly owned subsidiary, purchased $71.1 million of Secured Tower Revenue Securities Series 2020-1R issued by the Trust. These securities have an anticipated repayment date of January 11, 2028 and a final maturity date of July 9, 2052 (the “2020-2R Tower Securities”). The fixed interest rate on the 2020-2R Tower Securities is 4.336% per annum, payable monthly. Principal and interest payments made on the 2020-2R Tower Securities eliminate in consolidation.2021-1C Tower SecuritiesOn May 14, 2021, the Company, through a New York common law trust (the “Trust”), issued $1.165 billion of Secured Tower Revenue Securities Series 2021-1C which have an anticipated repayment date of November 9, 2026 and a final maturity date of May 9, 2051 (the “2021-1C Tower Securities”). The fixed interest rate on the 2021-1C Tower Securities is 1.631% per annum, payable monthly. Net proceeds from this offering were used to repay the entire aggregate principal amount of the 2017-1C Tower Securities ($760.0 million) and the Secured Tower Revenue Securities, Series 2017-1R ($40.0 million) and for general corporate purposes. The Company has incurred deferred financing fees of $12.7 million in relation to this transaction, which are being amortized through the anticipated repayment date of the 2021-1C Tower Securities.In addition, to satisfy certain risk retention requirements of Regulation RR promulgated under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), SBA Guarantor, LLC, a wholly owned subsidiary, purchased $61.4 million of Secured Tower Revenue Securities Series 2021-1R issued by the Trust. These securities have an anticipated repayment date of November 9, 2026 and a final maturity date of May 9, 2051 (the “2021-1R Tower Securities”). The fixed interest rate on the 2021-1R Tower Securities is 3.625% per annum, payable monthly. Principal and interest payments made on the 2021-1R Tower Securities eliminate in consolidation.2021-2C Tower Securities and 2021-3C Tower SecuritiesOn October 27, 2021, the Company, through the Trust, issued $895.0 million of 1.840% Secured Tower Revenue Securities Series 2021-2C which have an anticipated repayment date of April 9, 2027 and a final maturity date of October 10, 2051 (the “2021-2C Tower Securities”) and $895.0 million of 2.593% Secured Tower Revenue Securities Series 2021-3C which have an anticipated repayment date of October 9, 2031 and a final maturity date of October 10, 2056 (the “2021-3C Tower Securities”). The aggregate $1.79 billion of 2021-2C Tower Securities and 2021-3C Tower Securities have a blended interest rate of 2.217% and a weighted average life through the anticipated repayment date of 7.8 years.Net proceeds from this offering were used to repay amounts outstanding on the Revolving Credit Facility and remaining proceeds were used to redeem the entire aggregate principal amount of the 2016 Senior Notes ($1.1 billion) and to pay all premiums and costs associated with such redemption. The Company has incurred deferred financing fees of $18.3 million in relation to this transaction, which are being amortized through the anticipated repayment dates of the 2021-2C Tower Securities and 2021-3C Tower Securities.In addition, to satisfy certain risk retention requirements of Regulation RR promulgated under the Exchange Act, SBA Guarantor, LLC, a wholly owned subsidiary, purchased $94.3 million of Secured Tower Revenue Securities Series 2021-3R issued by the Trust. These securities have an anticipated repayment date of October 9, 2031 and a final maturity date of October 10, 2056 (the “2021-3R Tower Securities”). The fixed interest rate on the 2021-3R Tower Securities is 4.090% per annum, payable monthly. Principal and interest payments made on the 2021-3R Tower Securities eliminate in consolidation.In connection with the issuance of the 2021-1C Tower Securities, 2021-2C Tower Securities, 2021-3C Tower Securities, Tower Securities, SBA Properties, LLC, SBA Sites, LLC, SBA Structures, LLC, SBA Infrastructure, LLC, SBA Monarch Towers III, LLC, SBA 2012 TC Assets PR, LLC, SBA 2012 TC Assets, LLC, SBA Towers IV, LLC, SBA Monarch Towers I, LLC, SBA Towers USVI, Inc., SBA Towers VII, LLC, SBA GC Towers, LLC, SBA Towers V, LLC, and SBA Towers VI, LLC (collectively, the “Borrowers”), each an indirect subsidiary of SBAC, and Midland Loan Services, a division of PNC Bank, National Association, as servicer, on behalf of the Trustee entered into the Second Loan and Security Agreement Supplement and Amendment pursuant to which, among other things, (1) the outstanding principal amount of the mortgage loan was increased by $3.0 billion (but increased by a net of $1.7 billion after giving effect to repayment of the loan components relating to the 2013-2C Tower Securities and 2017-1C Tower Securities) and (2) the Borrowers became jointly and severally liable for the aggregate $6.7 billion borrowed under the mortgage loan corresponding to the 2014-2C Tower Securities, 2018-1C Tower Securities, 2019-1C Tower Securities, the 2020-1C Tower Securities, 2020-2C Tower Securities, 2021-1C Tower Securities, 2021-2C Tower Securities, and 2021-3C Tower Securities. The new loans, after eliminating the risk retention securities, accrue interest at the same rate as the 2021-1C Tower Securities, 2021-2C Tower Securities, and 2021-3C Tower Securities and are subject to all other material terms of the existing mortgage loan, including collateral and interest rate after the anticipated repayment date.Debt CovenantsAs of December 31, 2021, the Borrowers met the debt service coverage ratio required by the mortgage loan agreement and were in compliance with all other covenants as set forth in the agreement.Senior NotesIndentures Governing Senior NotesThe Indentures governing the Senior Notes contain customary covenants, subject to a number of exceptions and qualifications, including restrictions on the ability of SBAC and Telecommunications to (1) incur additional indebtedness unless the Consolidated Indebtedness to Annualized Consolidated Adjusted EBITDA Ratio (as defined in the Indenture), pro forma for the additional indebtedness does not exceed, with respect to any fiscal quarter, 9.5x for SBAC, (2) merge, consolidate or sell assets, (3) make restricted payments, including dividends or other distributions, (4) enter into transactions with affiliates, and (5) enter into sale and leaseback transactions and restrictions on the ability of the Restricted Subsidiaries of SBAC (as defined in the Indentures) to incur liens securing indebtedness.2014 Senior NotesOn July 1, 2014, the Company issued $750.0 million of unsecured senior notes due July 15, 2022 (the “2014 Senior Notes”). The 2014 Senior Notes accrued interest at a rate of 4.875% per annum and were issued at 99.178% of par value. The Company had incurred financing fees of $11.6 million in relation to this transaction, which were being amortized through the maturity date.On February 20, 2020, the Company redeemed the entire $750.0 million balance of the 2014 Senior Notes with proceeds from the 2020 Senior Notes (defined below). In addition, the Company paid a $9.1 million call premium and expensed $7.7 million for the write-off of the original issue discount and financing fees related to the redemption of the 2014 Senior Notes which are reflected in loss from extinguishment of debt on the Consolidated Statement of Operations.2016 Senior NotesOn August 15, 2016, the Company issued $1.1 billion of unsecured senior notes due September 1, 2024 (the “2016 Senior Notes”). The 2016 Senior Notes accrued interest at a rate of 4.875% per annum and were issued at 99.178% of par value. The Company incurred financing fees of $12.8 million in relation to this transaction, which were being amortized through the maturity date.On November 8, 2021, the Company redeemed the entire $1.1 billion balance of the 2016 Senior Notes with proceeds from the 2021-2C Tower Securities and 2021-3C Tower Securities. In addition, the Company paid a $13.4 million call premium and expensed $10.3 million for the write-off of the original issue discount and financing fees related to the redemption of the 2016 Senior Notes, which are reflected in loss from extinguishment of debt on the Consolidated Statement of Operations.2017 Senior NotesOn October 13, 2017, the Company issued $750.0 million of unsecured senior notes due October 1, 2022 at par value (the “2017 Senior Notes”). The 2017 Senior Notes accrued interest at a rate of 4.0% per annum. The Company incurred financing fees of $8.9 million in relation to this transaction, which were being amortized through the maturity date. On February 11, 2021, the Company redeemed the entire $750.0 million balance of the 2017 Senior Notes with proceeds from the 2021 Senior Notes (defined below). In addition, the Company paid a $7.5 million call premium and expensed $4.2 million for the write-off of financing fees related to the redemption of the 2017 Senior Notes, which are reflected in loss from extinguishment of debt on the Consolidated Statement of Operations.2020 Senior NotesOn February 4, 2020, the Company issued $1.0 billion of unsecured senior notes due February 15, 2027 at par value (the “2020-1 Senior Notes”), and on May 26, 2020, the Company issued $500.0 million of additional unsecured senior notes under the same indenture at 99.500% of par value (the “2020-2 Senior Notes”) (collectively, the “2020 Senior Notes”). The 2020 Senior Notes accrue interest at a rate of 3.875% per annum. Net proceeds from these offerings were used to redeem the entire $750.0 million outstanding principal amount of the 2014 Senior Notes, repay amounts outstanding under the Revolving Credit Facility, and for general corporate purposes. Interest on the 2020 Senior Notes is due semi-annually on February 15 and August 15 of each year, beginning on August 15, 2020. The Company incurred financing fees of $18.0 million in relation to this transaction, which are being amortized through the maturity date.The 2020 Senior Notes are subject to redemption in whole or in part on or after February 15, 2023 at the redemption prices set forth in the indenture agreement plus accrued and unpaid interest. Prior to February 15, 2023, the Company may, at its option, redeem up to 35% of the aggregate principal amount of the 2020 Senior Notes originally issued at a redemption price of 103.875% of the principal amount of the 2020 Senior Notes to be redeemed on the redemption date plus accrued and unpaid interest with the net proceeds of certain equity offerings. The Company may redeem the 2020 Senior Notes during the twelve-month period beginning on the following dates at the following redemption prices: February 15, 2023 at 101.938%, February 15, 2024 at 100.969%, or February 15, 2025 until maturity at 100.000%, of the principal amount of the 2020 Senior Notes to be redeemed on the redemption date plus accrued and unpaid interest.2021 Senior NotesOn January 29, 2021, the Company issued $1.5 billion of unsecured senior notes due February 1, 2029 at par value (the “2021 Senior Notes”). The 2021 Senior Notes accrue interest at a rate of 3.125% per annum. Interest on the 2021 Senior Notes is due semi-annually on February 1 and August 1 of each year, beginning on August 1, 2021. The Company incurred financing fees of $14.6 million in relation to this transaction, which are being amortized through the maturity date. Net proceeds from this offering were used to redeem the entire $750.0 million outstanding principal amount of the 2017 Senior Notes, repay the amounts outstanding under the Revolving Credit Facility, and for general corporate purposes.The 2021 Senior Notes are subject to redemption in whole or in part on or after February 1, 2024 at the redemption prices set forth in the indenture agreement plus accrued and unpaid interest. Prior to February 1, 2024, the Company may, at its option, redeem up to 35% of the aggregate principal amount of the 2021 Senior Notes originally issued at a redemption price of 103.125% of the principal amount of the 2021 Senior Notes to be redeemed on the redemption date plus accrued and unpaid interest with the net proceeds of certain equity offerings. The Company may redeem the 2021 Senior Notes during the twelve-month period beginning on the following dates at the following redemption prices: February 1, 2024 at 101.563%, February 1, 2025 at 100.781%, or February 1, 2026 until maturity at 100.000%, of the principal amount of the 2021 Senior Notes to be redeemed on the redemption date plus accrued and unpaid interest.