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Summary of Significant Accounting Policies - Revenue Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Lessor, Lease, Description [Line Items] |  |  |  |
Storage rental | $ 696,294 | $ 673,318 | $ 2,056,797 | $ 2,005,580
Global Data Center Business |  |  |  |
Lessor, Lease, Description [Line Items] |  |  |  |
Storage rental | 68,416 | 62,001 | 196,823 | 182,301
Storage Rental, Power and Connectivity | Global Data Center Business |  |  |  |
Lessor, Lease, Description [Line Items] |  |  |  |
Storage rental | $ 12,033 | $ 12,001 | $ 34,986 | $ 31,031

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