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Cash, Cash Equivalents, and Restricted Cash | 9 Months Ended
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Sep. 30, 2025
Cash, Cash Equivalents, and Restricted Cash [Abstract] |
Cash, Cash Equivalents, and Restricted Cash | 3.CASH, CASH EQUIVALENTS, AND RESTRICTED CASH The cash, cash equivalents, and restricted cash balances on the Consolidated Statements of Cash Flows consist of the following:
|  | As of |  | As of |  |
|  | September 30, 2025 |  | December 31, 2024 |  | Included on Balance Sheet
|  | (in thousands) |  |
Cash and cash equivalents |  | $ | 430,306 |  | $ | 189,841 |  | Cash and cash equivalents
Securitization escrow accounts |  |  | 20,509 |  |  | 1,200,025 |  | Restricted cash - current asset
Payment, performance bonds, and other |  |  | 9,958 |  |  | 6,628 |  | Restricted cash - current asset
Surety bonds and workers compensation |  |  | 4,621 |  |  | 4,163 |  | Other assets - noncurrent
Total cash, cash equivalents, and restricted cash |  | $ | 465,394 |  | $ | 1,400,657 |  |
Pursuant to the terms of the Tower Securities (see Note 10), the Company is required to establish a securitization escrow account, held by the indenture trustee, into which all rents and other sums due on the towers that secure the Tower Securities are directly deposited by the lessees. These restricted cash amounts are used to fund reserve accounts for the payment of (1) debt service costs, (2) ground rents, real estate and personal property taxes and insurance premiums related to towers, (3) trustee and servicing expenses, and (4) management fees. The restricted cash in the securitization escrow account in excess of required reserve balances is subsequently released to the Borrowers (as defined in Note 10) monthly, provided that the Borrowers are in compliance with their debt service coverage ratio and that no event of default has occurred. All monies held by the indenture trustee are classified as restricted cash on the Company’s Consolidated Balance Sheets. Additionally, securitization escrow accounts included $1.165 billion held as of December 31, 2024, which was utilized to repay the 2019-1C Tower Securities on January 15, 2025. Payment and performance bonds relate primarily to collateral requirements for tower construction currently in process by the Company. Other restricted cash includes $7.6 million and $6.4 million held in escrow as of September 30, 2025 and December 31, 2024, respectively, related to the Company’s acquisition activities. Cash is pledged as collateral related to surety bonds issued for the benefit of the Company or its affiliates in the ordinary course of business and primarily related to the Company’s tower removal obligations. As of September 30, 2025 and December 31, 2024, the Company had $42.4 million and $42.5 million, respectively, in surety and payment and performance bonds for which no collateral was required to be posted. The Company periodically evaluates the collateral posted for its bonds to ensure that it meets the minimum requirements. As of September 30, 2025 and December 31, 2024, the Company had pledged $2.9 million and $2.5 million, respectively, as collateral related to its workers’ compensation policy.

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- Definition The entire disclosure for cash and cash equivalent footnotes, which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments maturing within three months from the date of acquisition qualify. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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