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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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The aggregate net amount of depreciation, amortization, and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by or used in operations using the indirect method.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Foreign exchange rate used to remeasure amounts denominated in a currency other than functional currency into functional currency.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Amount of lessee's right to use underlying asset under operating lease.

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Cash received on stock transaction after deduction of issuance costs.

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Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction.

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BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) ₨ in Millions, $ in Millions			3 Months Ended			12 Months Ended	48 Months Ended
	Jan. 04, 2024 USD ($)	Jan. 04, 2024 INR (₨)	Mar. 31, 2024 USD ($) reportableSegment	Mar. 31, 2024 INR (₨) reportableSegment	Mar. 31, 2023 USD ($)	Dec. 31, 2024 USD ($)	Aug. 31, 2026	Dec. 31, 2023 USD ($)
Concentration Risk [Line Items]
Number of reportable segments \| reportableSegment			7	7
Right-of-use asset			$ 9,199.8					$ 8,878.8
Depreciation and amortization			(549.4)		$ (794.1)
Foreign currency exchange rate, remeasurement								11.95
Property straight-line revenue			79.0		112.0
Indian Customer
Concentration Risk [Line Items]
Deferred recognition of revenue					$ 33.0
Revenue recognized			29.0
Service Life
Concentration Risk [Line Items]
Right-of-use asset			515.0
Service Life \| Forecast
Concentration Risk [Line Items]
Depreciation and amortization						$ 730.0
Change In Settlement Dates
Concentration Risk [Line Items]
Change in asset retirement obligations			470.0
Future cash outlay			$ 875.0
Change In Settlement Dates \| Forecast
Concentration Risk [Line Items]
Accretion expense						$ 75.0
Tower
Concentration Risk [Line Items]
Estimated useful life of the tower (in years)			30 years					20 years
Minimum
Concentration Risk [Line Items]
Operating history, period			20 years	20 years
ATC TIPL
Concentration Risk [Line Items]
Dividends received			$ 115.1	₨ 9,603
Data Infrastructure Trust (DIT) \| ATC TIPL
Concentration Risk [Line Items]
Consideration on sale of stocks	$ 2,500.0	₨ 210,000
Data Infrastructure Trust (DIT) \| ATC TIPL \| ATC TIPL
Concentration Risk [Line Items]
Equity method investment, ownership interest percentage	100.00%	100.00%
U.S. \| Data Centers \| Common Stock
Concentration Risk [Line Items]
Percentage of ownership after transaction (as a percent)			72.00%	72.00%
U.S. \| Data Centers \| Common Stock \| Forecast
Concentration Risk [Line Items]
Percentage of ownership after transaction (as a percent)							64.00%
Ghana \| Asset Benchmark \| Geographic Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage			1.00%	1.00%
Ghana \| Revenue Benchmark \| Geographic Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage			1.00%	1.00%
ATC Europe
Concentration Risk [Line Items]
Noncontrolling ownership interest percentage (as a percent)			52.00%
Joint Venture - Bangladesh Operations
Concentration Risk [Line Items]
Ownership percentage (as a percent)			51.00%
Stonepeak \| U.S. \| Data Centers \| Common Stock
Concentration Risk [Line Items]
Ownership percentage by noncontrolling owners (as a percent)			28.00%
Stonepeak \| U.S. \| Data Centers \| Common Stock \| Forecast
Concentration Risk [Line Items]
Ownership percentage by noncontrolling owners (as a percent)							36.00%
Stonepeak \| U.S. \| Data Centers \| Preferred stock
Concentration Risk [Line Items]
Ownership percentage by noncontrolling owners (as a percent)			100.00%
Germany
Concentration Risk [Line Items]
Ownership percentage by noncontrolling owners (as a percent)			13.00%
Germany \| ATC Europe
Concentration Risk [Line Items]
Noncontrolling ownership interest percentage (as a percent)			87.00%
Ownership percentage by noncontrolling owners (as a percent)			87.00%
Spain
Concentration Risk [Line Items]
Ownership percentage by noncontrolling owners (as a percent)			17.00%
Spain \| ATC Europe
Concentration Risk [Line Items]
Noncontrolling ownership interest percentage (as a percent)			83.00%