Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Supplemental Schedule of Noncash Investing and Financing Activities
Cash dividends declared, but not yet paid	$ 6.5	$ 4.0
Universal Weather And Aviation, Inc.
Supplemental Schedule of Noncash Investing and Financing Activities
Deferred consideration	$ 30.0

Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.

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