Segment Information - Revenue Information on Services Basis (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue from External Customer [Line Items]
Revenue	$ 1,444,542	$ 1,363,218
Recurring Revenues
Revenue from External Customer [Line Items]
Revenue	1,361,694	1,274,828
Colocation
Revenue from External Customer [Line Items]
Revenue	1,034,377	980,771
Interconnection
Revenue from External Customer [Line Items]
Revenue	242,141	212,784
Managed infrastructure services
Revenue from External Customer [Line Items]
Revenue	77,490	72,795
Other
Revenue from External Customer [Line Items]
Revenue	7,686	8,478
Non-Recurring Revenues
Revenue from External Customer [Line Items]
Revenue	82,848	88,390
Americas
Revenue from External Customer [Line Items]
Revenue	661,905	644,366
Americas | Recurring Revenues
Revenue from External Customer [Line Items]
Revenue	632,632	606,310
Americas | Colocation
Revenue from External Customer [Line Items]
Revenue	450,954	439,981
Americas | Interconnection
Revenue from External Customer [Line Items]
Revenue	150,929	138,563
Americas | Managed infrastructure services
Revenue from External Customer [Line Items]
Revenue	25,529	21,787
Americas | Other
Revenue from External Customer [Line Items]
Revenue	5,220	5,979
Americas | Non-Recurring Revenues
Revenue from External Customer [Line Items]
Revenue	29,273	38,056
EMEA
Revenue from External Customer [Line Items]
Revenue	478,909	434,660
EMEA | Recurring Revenues
Revenue from External Customer [Line Items]
Revenue	443,474	400,237
EMEA | Colocation
Revenue from External Customer [Line Items]
Revenue	362,330	331,125
EMEA | Interconnection
Revenue from External Customer [Line Items]
Revenue	48,541	37,525
EMEA | Managed infrastructure services
Revenue from External Customer [Line Items]
Revenue	30,137	29,088
EMEA | Other
Revenue from External Customer [Line Items]
Revenue	2,466	2,499
EMEA | Non-Recurring Revenues
Revenue from External Customer [Line Items]
Revenue	35,435	34,423
Asia-Pacific
Revenue from External Customer [Line Items]
Revenue	303,728	284,192
Asia-Pacific | Recurring Revenues
Revenue from External Customer [Line Items]
Revenue	285,588	268,281
Asia-Pacific | Colocation
Revenue from External Customer [Line Items]
Revenue	221,093	209,665
Asia-Pacific | Interconnection
Revenue from External Customer [Line Items]
Revenue	42,671	36,696
Asia-Pacific | Managed infrastructure services
Revenue from External Customer [Line Items]
Revenue	21,824	21,920
Asia-Pacific | Other
Revenue from External Customer [Line Items]
Revenue	0	0
Asia-Pacific | Non-Recurring Revenues
Revenue from External Customer [Line Items]
Revenue	$ 18,140	$ 15,911