Percentage price of aggregate principal amount of debt at which debt can be redeemed by the issuer.

No definition available.

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- Definition

Debt Instrument, Redemption Period

+ References

No definition available.

+ Details

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- Definition

Interest payable dates.

+ References

No definition available.

+ Details

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- Definition

Percentage of face value price for issuance of senior notes.

+ References

No definition available.

+ Details

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Namespace Prefix:	sbac_
Data Type:	num:percentItemType
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- Definition

Premium paid on redemption of debt.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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- 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

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

+ Details

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- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28555-108399

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Balance Type:	debit
Period Type:	instant

- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.8)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

+ Details

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Debt (Senior Notes) (Narrative) (Details) - USD ($) $ in Millions			9 Months Ended
	May 26, 2020	Feb. 20, 2020	Sep. 30, 2020	Feb. 04, 2020
2014 Senior Notes [Member]
Debt Instrument [Line Items]
Premium on redemption		$ 9.1
Write-off of deferred financing fees		$ 7.7
Debt instrument, maturity date			Jul. 15, 2022
Debt instrument, interest rate, stated percentage			4.875%
2020-1 Senior Notes [Member]
Debt Instrument [Line Items]
Unsecured senior notes				$ 1,000.0
2020-2 Senior Notes [Member]
Debt Instrument [Line Items]
Unsecured senior notes	$ 500.0
Percentage of face value price for issuance of senior notes	99.50%
2020 Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date			Feb. 15, 2027
Debt instrument, interest rate, stated percentage			3.875%
Interest payable dates			February 15 and August 15
Financing fees			$ 18.0
Redemption period			Feb. 15, 2023
Aggregate redemption price, percentage			35.00%
Redemption price, percentage			103.875%
2020 Senior Notes [Member] \| Redemption, Period One [Member]
Debt Instrument [Line Items]
Redemption period			Feb. 15, 2023
Redemption price, percentage			101.938%
2020 Senior Notes [Member] \| Redemption, Period Two [Member]
Debt Instrument [Line Items]
Redemption period			Feb. 15, 2024
Redemption price, percentage			100.969%
2020 Senior Notes [Member] \| Redemption, Period Three [Member]
Debt Instrument [Line Items]
Redemption period			Feb. 15, 2025
Redemption price, percentage			100.00%