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Acquisitions and Dispositions - Defenders Acquisition Narrative (Details) - USD ($) $ in Thousands, shares in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Jan. 31, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Jan. 06, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Acquisition of businesses, net of cash acquired				$ 179,372	$ 76,511
Issuance of shares for acquisition of business				113,841	0
Goodwill		$ 5,219,361		5,219,361			$ 4,959,658
Merger, restructuring, integration, and other		$ 12,038	$ 6,990	120,832	$ 13,269
Defenders
Business Acquisition [Line Items]
Consideration transferred	$ 290,000
Acquisition of businesses, net of cash acquired	$ 172,000
Shares issued for acquisition (in shares)	16
Issuance of shares for acquisition of business	$ 114,000
Goodwill						$ 252,619
Merger, restructuring, integration, and other				$ 81,000
Customer Relationships | Defenders
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life	14 years

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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