BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Total non-lease revenue	$ 243.7	$ 196.4	$ 469.7	$ 369.4
Property lease revenue	2,383.2	2,348.3	4,720.0	4,687.9
Total revenue	2,626.9	2,544.7	5,189.7	5,057.3
U.S. & Canada
Disaggregation of Revenue [Line Items]
Total non-lease revenue	172.0	124.6	321.3	227.7
Property lease revenue	1,234.6	1,238.2	2,458.2	2,476.0
Total revenue	1,406.6	1,362.8	2,779.5	2,703.7
Africa & APAC
Disaggregation of Revenue [Line Items]
Total non-lease revenue	3.4	6.2	15.4	12.3
Property lease revenue	332.9	293.0	654.5	584.0
Total revenue	336.3	299.2	669.9	596.3
Europe
Disaggregation of Revenue [Line Items]
Total non-lease revenue	3.4	5.2	6.2	8.7
Property lease revenue	229.3	198.0	439.5	399.0
Total revenue	232.7	203.2	445.7	407.7
Latin America
Disaggregation of Revenue [Line Items]
Total non-lease revenue	28.1	27.6	54.1	56.3
Property lease revenue	361.3	421.1	734.5	837.9
Total revenue	389.4	448.7	788.6	894.2
Data Centers
Disaggregation of Revenue [Line Items]
Total non-lease revenue	36.8	32.8	72.7	64.4
Property lease revenue	225.1	198.0	433.3	391.0
Total revenue	261.9	230.8	506.0	455.4
Non-lease property revenue
Disaggregation of Revenue [Line Items]
Total non-lease revenue	144.2	149.0	295.6	291.8
Non-lease property revenue \| U.S. & Canada
Disaggregation of Revenue [Line Items]
Total non-lease revenue	72.5	77.2	147.2	150.1
Non-lease property revenue \| Africa & APAC
Disaggregation of Revenue [Line Items]
Total non-lease revenue	3.4	6.2	15.4	12.3
Non-lease property revenue \| Europe
Disaggregation of Revenue [Line Items]
Total non-lease revenue	3.4	5.2	6.2	8.7
Non-lease property revenue \| Latin America
Disaggregation of Revenue [Line Items]
Total non-lease revenue	28.1	27.6	54.1	56.3
Non-lease property revenue \| Data Centers
Disaggregation of Revenue [Line Items]
Total non-lease revenue	36.8	32.8	72.7	64.4
Services revenue
Disaggregation of Revenue [Line Items]
Total non-lease revenue	99.5	47.4	174.1	77.6
Services revenue \| U.S. & Canada
Disaggregation of Revenue [Line Items]
Total non-lease revenue	99.5	47.4	174.1	77.6
Services revenue \| Africa & APAC
Disaggregation of Revenue [Line Items]
Total non-lease revenue	0.0	0.0	0.0	0.0
Services revenue \| Europe
Disaggregation of Revenue [Line Items]
Total non-lease revenue	0.0	0.0	0.0	0.0
Services revenue \| Latin America
Disaggregation of Revenue [Line Items]
Total non-lease revenue	0.0	0.0	0.0	0.0
Services revenue \| Data Centers
Disaggregation of Revenue [Line Items]
Total non-lease revenue	$ 0.0	$ 0.0	$ 0.0	$ 0.0