SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concentration Risks (Details) - Data center rental revenue	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025
Geographical concentration \| Missouri
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Concentration risk percentage	63.43%	62.83%
Geographical concentration \| California
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Concentration risk percentage	36.57%	37.17%
Customer concentration \| TierPoint
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Concentration risk percentage	40.55%	40.15%
Customer concentration \| Wesco
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Concentration risk percentage	22.87%	22.68%
Customer concentration \| AT&T Inc and subsidiaries
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Concentration risk percentage	36.58%	37.17%

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.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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