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Acquisitions - Narrative (Detail) $ in Thousands, $ in Millions |  |  |  | 3 Months Ended | 15 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Nov. 02, 2020 CAD ($) center | Nov. 02, 2020 USD ($) center | Mar. 02, 2020 USD ($) | Jan. 08, 2020 USD ($) center | Jun. 30, 2021 CAD ($) center | Mar. 31, 2021 USD ($) acquisition | Mar. 31, 2020 USD ($) | Mar. 31, 2021 acquisition | Oct. 01, 2020 center
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Stock-based compensation expense |  |  |  |  |  | $ 78,350 | $ 80,566 |  |
Number of acquisitions | acquisition |  |  |  |  |  | 3 |  | 3 |
Bell Data Centers |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Data centers purchased | center | 1 | 1 |  |  |  |  |  |  | 12
Consideration transferred | $ 934.3 | $ 704,000 |  |  |  |  |  |  |
Bell Data Centers | Customer relationships | Measurement input, discount rate |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Measurement input |  |  |  |  |  |  |  |  | 0.080
Packet Host, Inc. |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Consideration transferred |  |  | $ 290,300 |  |  |  |  |  |
Stock-based compensation expense |  |  |  |  |  |  | $ 16,100 |  |
Value of equity issued |  |  | $ 30,200 |  |  |  |  |  |
Vesting period of equity issued |  |  | 3 years |  |  |  |  |  |
Packet Host, Inc. | Trade names | Measurement input, royalty rate |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Measurement input |  |  | 0.010 |  |  |  |  |  |
Packet Host, Inc. | Trade names | Measurement input, discount rate |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Measurement input |  |  | 0.080 |  |  |  |  |  |
Packet Host, Inc. | Customer relationships | Measurement input, discount rate |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Measurement input |  |  | 0.080 |  |  |  |  |  |
Axtel |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Data centers purchased | center |  |  |  | 3 |  |  |  |  |
Consideration transferred |  |  |  | $ 189,000 |  |  |  |  |
Cash consideration for acquisition |  |  |  | 175,000 |  |  |  |  |
Value added taxes |  |  |  | $ 14,000 |  |  |  |  |
Axtel | Customer relationships | Measurement input, discount rate |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Measurement input |  |  |  | 0.133 |  |  |  |  |
Bell, Packet and Axtel Acquisitions |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Revenues from acquisitions included in results of operations |  |  |  |  |  | $ 48,500 |  |  |
Net loss of acquisitions included in earnings |  |  |  |  |  | $ 9,000 |  |  |
Forecast | GPX India Acquisition |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Data centers purchased | center |  |  |  |  | 2 |  |  |  |
Cash consideration for acquisition |  |  |  |  | $ 161.0 |  |  |  |

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