BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Total non-lease revenue	$ 211.1	$ 243.7	$ 427.2	$ 469.7
Property lease revenue	2,538.0	2,383.2	5,059.4	4,720.0
Total revenue	2,749.1	2,626.9	5,486.6	5,189.7
U.S. & Canada
Disaggregation of Revenue [Line Items]
Total non-lease revenue	136.5	172.0	273.3	321.3
Property lease revenue	1,199.2	1,234.6	2,391.6	2,458.2
Total revenue	1,335.7	1,406.6	2,664.9	2,779.5
Africa & APAC
Disaggregation of Revenue [Line Items]
Total non-lease revenue	2.2	3.4	6.3	15.4
Property lease revenue	413.1	332.9	787.6	654.5
Total revenue	415.3	336.3	793.9	669.9
Europe
Disaggregation of Revenue [Line Items]
Total non-lease revenue	3.4	3.4	7.0	6.2
Property lease revenue	256.0	229.3	513.1	439.5
Total revenue	259.4	232.7	520.1	445.7
Latin America
Disaggregation of Revenue [Line Items]
Total non-lease revenue	26.8	28.1	57.2	54.1
Property lease revenue	414.8	361.3	864.5	734.5
Total revenue	441.6	389.4	921.7	788.6
Data Centers
Disaggregation of Revenue [Line Items]
Total non-lease revenue	42.2	36.8	83.4	72.7
Property lease revenue	254.9	225.1	502.6	433.3
Total revenue	297.1	261.9	586.0	506.0
Non-lease property revenue
Disaggregation of Revenue [Line Items]
Total non-lease revenue	149.8	144.2	298.3	295.6
Non-lease property revenue \| U.S. & Canada
Disaggregation of Revenue [Line Items]
Total non-lease revenue	75.2	72.5	144.4	147.2
Non-lease property revenue \| Africa & APAC
Disaggregation of Revenue [Line Items]
Total non-lease revenue	2.2	3.4	6.3	15.4
Non-lease property revenue \| Europe
Disaggregation of Revenue [Line Items]
Total non-lease revenue	3.4	3.4	7.0	6.2
Non-lease property revenue \| Latin America
Disaggregation of Revenue [Line Items]
Total non-lease revenue	26.8	28.1	57.2	54.1
Non-lease property revenue \| Data Centers
Disaggregation of Revenue [Line Items]
Total non-lease revenue	42.2	36.8	83.4	72.7
Services revenue
Disaggregation of Revenue [Line Items]
Total non-lease revenue	61.3	99.5	128.9	174.1
Services revenue \| U.S. & Canada
Disaggregation of Revenue [Line Items]
Total non-lease revenue	61.3	99.5	128.9	174.1
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