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Subsequent Events (Details) - Subsequent Event - USD ($) $ / shares in Units, $ in Millions	Jun. 07, 2019	May 24, 2019	May 01, 2019	Apr. 18, 2019
Subsequent Event [Line Items]
Dividends Payable, Date Declared				Apr. 18, 2019
Quarterly dividend, value per share				$ 0.17
Quarterly dividend, date to be paid	Jun. 07, 2019
Quarterly dividend, date of record		May 24, 2019
Quarterly dividend, amount declared	$ 23.0
Business Combination, Consideration Transferred			$ 22.0
Business Combination, Contingent Consideration, Liability			$ 12.0