XML 86 R76.htm IDEA: XBRL DOCUMENT
v3.23.1

Derivatives and Hedging Activities (Narrative) (Details) - USD ($) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 04, 2020 | Mar. 31, 2023 | Dec. 31, 2022
Interest Rate Swap [Member] |  |  |
Derivative [Line Items] |  |  |
Accumulated derivative losses |  | $ 97,200,000 | $ 119,600,000
Interest Rate Swap [Member] | Minimum [Member] |  |  |
Derivative [Line Items] |  |  |
Remaining maturity year |  | 2023 |
Interest Rate Swap [Member] | Maximum [Member] |  |  |
Derivative [Line Items] |  |  |
Remaining maturity year |  | 2025 |
2018 Term Loan [Member] | Interest Rate Swap [Member] |  |  |
Derivative [Line Items] |  |  |
Notional amount |  | $ 1,950,000,000 |
Derivative fixed interest rate |  | 1.874% |
Cash Flow Hedges [Member] | Interest Rate Swap [Member] |  |  |
Derivative [Line Items] |  |  |
Cash transfer in connection with termination of swaps | $ 0 |  |
Cash Flow Hedges [Member] | 2018 Term Loan [Member] |  |  |
Derivative [Line Items] |  |  |
Notional amount | 1,950,000,000 |  |
Payment to terminate | 176,200,000 |  |
Cash Flow Hedges [Member] | 2018 Term Loan [Member] | Interest Rate Swap [Member] |  |  |
Derivative [Line Items] |  |  |
Notional amount | $ 1,950,000,000 |  |
Derivative fixed interest rate | 1.874% |  |
Derivative asset, fair value |  | $ 151,500,000 | $ 182,900,000
London Interbank Offered Rate (LIBOR) [Member] | 2018 Term Loan [Member] | Interest Rate Swap [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative basis spread on variable interest rate |  | 1.75% |
London Interbank Offered Rate (LIBOR) [Member] | Cash Flow Hedges [Member] | 2018 Term Loan [Member] | Interest Rate Swap [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative basis spread on variable interest rate | 1.75% |  |

X
- Definition Cash Transfer in Connection with Termination of Swaps + References No definition available. + Details
Name: | sbac_CashTransferInConnectionWithTerminationOfSwaps
Namespace Prefix: | sbac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Derivative, Payment to Terminate + References No definition available. + Details
Name: | sbac_DerivativePaymentToTerminate
Namespace Prefix: | sbac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Derivative Remaining Maturity Year + References No definition available. + Details
Name: | sbac_DerivativeRemainingMaturityYear
Namespace Prefix: | sbac_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage points added to the reference rate to compute the variable rate on the interest rate derivative. + References No definition available. + Details
Name: | us-gaap_DerivativeBasisSpreadOnVariableRate
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI https://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959 + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
Name: | us-gaap_DerivativeFixedInterestRate
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Nominal or face amount used to calculate payments on the derivative liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 + Details
Name: | us-gaap_DerivativeLiabilityNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of decrease in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 + Details
Name: | us-gaap_DerivativeLossOnDerivative
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=sbac_TwoThousandEighteenTermLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |