Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Goodwill [Roll Forward]
Beginning balance			$ 2,548,670		$ 2,548,670
Goodwill impairment	$ 0	$ 0	$ (1,470,000)	$ 0	(1,470,000)	$ 0
Ending balance	$ 1,078,670				$ 1,078,670

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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