Acquisitions - Preliminary Purchase Price Allocation (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Oct. 01, 2020	Mar. 02, 2020	Jan. 08, 2020
Allocation of purchase price consideration
Goodwill	$ 5,411,123	$ 5,472,553
Bell Data Centers
Allocation of purchase price consideration
Cash and cash equivalents			$ 0
Accounts receivable			0
Other current assets			696
Property, plant and equipment			538,717
Operating lease right-of-use assets			14,359
Intangible assets			75,857
Goodwill			172,387
Deferred tax and other assets			722
Total assets acquired			802,738
Accounts payable and accrued liabilities			(895)
Other current liabilities			0
Operating lease liabilities			(13,340)
Finance lease liabilities			(80,026)
Deferred tax and other liabilities			(4,495)
Net assets acquired			$ 703,982
Packet Host, Inc.
Allocation of purchase price consideration
Cash and cash equivalents				$ 1,068
Accounts receivable				5,098
Other current assets				299
Property, plant and equipment				27,945
Operating lease right-of-use assets				1,519
Intangible assets				58,500
Goodwill				230,620
Deferred tax and other assets				138
Total assets acquired				325,187
Accounts payable and accrued liabilities				(1,275)
Other current liabilities				(860)
Operating lease liabilities				(1,519)
Finance lease liabilities				(27,945)
Deferred tax and other liabilities				(3,290)
Net assets acquired				$ 290,298
Axtel
Allocation of purchase price consideration
Cash and cash equivalents					$ 0
Accounts receivable					0
Other current assets					14,048
Property, plant and equipment					76,407
Operating lease right-of-use assets					1,646
Intangible assets					22,750
Goodwill					78,902
Deferred tax and other assets					0
Total assets acquired					193,753
Accounts payable and accrued liabilities					(238)
Other current liabilities					0
Operating lease liabilities					(1,586)
Finance lease liabilities					0
Deferred tax and other liabilities					(2,911)
Net assets acquired					$ 189,018