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.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Segment Information - Narrative (Detail)	9 Months Ended	12 Months Ended
Segment Information - Narrative (Detail)	Dec. 31, 2019 plan	Dec. 31, 2019 plan	Dec. 31, 2019 segment	May 31, 2017 Site	Dec. 31, 2016 Site
Segment Reporting Information [Line Items]
Number of reportable segments	2	2	2
United States and Latin America \| Data Center Sale with Equinix
Segment Reporting Information [Line Items]
Number of data center sites sold				23	23