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Income Taxes - Narrative (Detail) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
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Income Tax Contingency [Line Items] |  |  |
Unrecognized tax benefits that would impact effective tax rate | $ 89.2 |  |
Tax basis of REIT assets in excess of balance sheet | 2,500.0 |  |
Tax credit carryforward | 6.2 |  |
Unrecognized tax benefits, interest and penalties accrued | 6.5 | $ 13.6 | $ 21.3
Capital Loss Carryforward |  |  |
Income Tax Contingency [Line Items] |  |  |
Tax credit carryforward | 7.2 |  |
Indemnification Agreement | Metronode |  |  |
Income Tax Contingency [Line Items] |  |  |
Unrecognized tax benefits that would impact effective tax rate | $ 2.0 | $ 32.0 |

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