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Acquisitions (Details) - USD ($) $ in Thousands, shares in Millions | 1 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jan. 31, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Business Acquisition [Line Items] |  |  |  |
Acquisition of businesses, net of cash acquired |  | $ 16,411 | $ 179,372 |
Goodwill |  | 5,244,685 |  | $ 5,236,302
Issuance of shares for acquisition of business |  | 0 | $ 113,841 |
Series of Individually Immaterial Business Acquisitions |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Consideration transferred |  | $ 16,000 |  |
Defenders |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Acquisition of businesses, net of cash acquired | $ 173,000 |  |  |
Consideration transferred | 290,000 |  |  |
Issuance of shares for acquisition of business | $ 114,000 |  |  |
Defenders | Common Stock |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Shares issued for acquisition (in shares) | 16 |  |  |

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